#AskGMBNTech Hi Doddy. Is the heat from the brake disk will damage my brake and can i upgrade the size of my brake disk from 160 to 200++. Or there another way to avoid a very high heat on the disk when DH. Thanks🤔
#AskGMBNTech. HI Doddy. I am currently running a Shimano zee derailleur on a nine speed cogs (11t-32t) with nine speed shifter (Shimano alivio), do you got any tips to make it shift more accurate?.
In reference to lower TPI's: "a bit weak really" - The higher the TPI the lower the puncture resistance, and lower the general resilience - not the other way round - As the threads in a lower TPI tyre are literally thicker. But the higher the TPI the greater the degree of suppleness of tyre, and a generally better ride quality. - Seriously guys surely you know this. Edit: Added thread thickness info.
I think the following expresses where the confusion may arise from. Taken from schwalbe.com - Please take note of the section highlighted with asterisks. "The density of the carcass fabric is expressed in EPI or TPI (Ends Per Inch, Threads Per Inch). The range of carcasses used, for example, for bicycle tires are 20, 24, 37, 50, 67 and 127 EPI. In principle, the more close-meshed a carcass is woven, the higher the quality of the tire. A dense carcass is important for low rolling resistance and good riding properties. At the same time, puncture protection increases, because carcasses with a high strand density are difficult to puncture. **** However, this does not apply to the extremely fine 127 EPI carcasses, as each strand is sheer and quite vulnerable. The best compromise for low weight and resistance is around 67 EPI. **** In most of our top tires we use a 67 EPI carcass. Weight and rolling resistance can be reduced even further by using a 127 EPI carcass. But at the same time, these tires are more vulnerable to damage. Therefore, we intentionally use the 127 EPI carcasses only for light competition tires, where weight is an important factor." - The following is from sheldonbrown.com "Some tires use thick thread, some use thin thread for the fabric. With thin thread, there are more threads per inch ("TPI") and this number is often considered an important indication of tire performance."
Doddy you were wrong on 8:40 Coen Dost question, he’s asking for back pedaling. It seems his chain line isn’t perfect so it’s quite natural the chain drops from biggest rear cog.
The channel is great, I just started getting into MTB. All the video's really help, especially the tech video's about maintenance. I'm currently building up my tools, as I want to do all my own maintenance. Also running an older bike (2012 Giant Trance), it's in good shape put I imagine will need to be well maintained to stay that way.
I am running Hutchinson front and rear. 27.5" Cobra 2.10 127 Tpi Front Tubless 27.5" Python2 2.10 127 Tpi Back Tubless On MavicCrossMax Elite, works like a charm for XC !
The prefect set up for my 29 inch nukeproof mega is Michelin wild enduro on the front and a wild am on the rear you get the grip on the front and support in the rear
Bollocks on 'tubeless ready' tires - I've heard the same spiel from bike shop 'experts'. I've successfully run cheap Kenda tube types with the same amount of sealant that high end tubeless casing Schwalbe tires required. Just this week I successfully mounted old tube style, 60 TPI WTB Bronsons on my 2009 era 26" Mavic 717 tube only rims - theoretically impossible, but after two hard rides, they're completely airtight. It's a tricky setup, as those old rims have that gap where the ends of the rim are just tacked together, requiring perfect rim tape/tire bead alignment, but it's not impossible. Any decent sealant will permeate tire walls in about 24 hours.
I’ve been riding Continental Mountain Kings front and rear for the past few months, and they roll fast and grip well here, which is impressive because all my trails are covered in sand! The one thing you definitely need to know before purchasing is that (at least in 29”) the tire is .2 inches narrower than advertised, so the 2.2 inch is actually 2.0, and the 2.4 is actually 2.2.
Yes, and the presenter completely misunderstood the question! Adjusting the rear mech won't have any influence on it. When pedalling backwards it's the widely displaced chain line of a 1x that will unseat the chain from a sprocket.
Coen Dost When you are in the largest cog and you pedal backwards the chain falls down it is because of cross chaining i suggest you try experimenting some spacers in your crankset so the chain line won't be so stressed.
Chain falling off in big cog when _backpedalling_ is almost always chainline a bit far outboard. Move BB/spindle spacers is possible (e.g.: Raceface), or put some thin spacers/washers between the chainring and crank.
@@Cous1nJack maybe, maybe not that it would make the small CoG skip. Obviously you wouldn't just shove 5mm of spacers in, have to move in small increments (raceface spindle spacers are 1.5mm IIRC). You've never had to ratchet-pedal up something steep and gnarly? Because that's back-pedaling while climbing...
I'm sure Doddy knows, but back pedaling chain drop can also be related to chainline. Even with a perfectly adjusted deraileur, straight hanger, brand new chain/cassette if the chainline is off from the chainring/BB spacing you can have it drop on back pedal.
I run the maxxis Ardent on my front and the maxxis crossmark on my rear this is a great set up and i would highly recommend it And for my race set i use the schwalbe nobby nic on the front and the rapid ralph on the rear agian really good combo
Doddy, whats your opinion on the ever changing rim to tire sizing? I've got a set of 27.5 stans major (38 internal) setup with 2.8 tires that are great in the right conditions but would like to put 2.5 for the majority of the time. It seems every manufacturer of wheels/ tires has a different opinion on rim to tire compatibility, thoughts? #AskGMBNTech
On my serious Rockville hardtail comp series upgraded hydraulic disc bike I use the default tyres they are the meghna 2620 tyres 27.5 inch with 2.5inch width the tube in it is quite robust also and the tyres are in it are quite durable and for a Schrader tube setup they hold the air amazingly well I last pumped it up on Monday when I first got the bike and it's still brick solid i pumped them up to 55psi took it on trails and canal paths I had the speed, durability grip and comfort out of these German made tyres the rims are amazing stock also my gear set is a 3by 8 drive drain the shimano tourney 2019 model it's a medium end set but stock the shifting is precise with no delay and fast firing shimano thumb shifters i enjoyed the serious Rockville comp series better than most British made high end mtb bikes I paid 429 quid for the comp series by serious out of bikester online shop
Recently put the new Kenda Nevegal-x pro's on my MTB. Great for the loose rocky trails around my trails. Price is good too! Running 26 x 2.3's. Roll pretty quick and grip super well. I was able to do a couple technical descents like it was nothing! Couldn't do that on my old tires.
Recommend the Maxxis Aspen tires. Best tires I've ever raced with. They are really light, fast rolling but also works great in muddy conditions because the mud falls of easily
Defo need a tyre vid as sooo much more to it than that...not least Grip! And durometer (compound 'hardness') is not a linear relationship to rolling speed...depends on the rubber mix, additives, quality etc...one brands 50d will roll faster than another brands 55 etc . the tread pattern, sipes, block stiffness, block design, clear edge channels or offset sideknobs, width...there is LOADS to it. Simple advice, decided terrain type (hardpack, slop etc), riding temp, riding style, BUDGET, and than match tyre to that...noting to have more grippier on the front (whether 'grippier' is by softer, wider - or narrow in mud - tread design etc etc etc)
Coen Dost. I think you need a wolf tooth road link. I put a 11-34 cassette on my old 26er giant. It would work fine for a 30 mins of a ride then I would loose the lowest gear. Wold tooth road link costs around £25.
No adjustment of the derailleur will stop the chain from shifting when pedaling backwards. The guide pulleys cant effect that because its spinning in the opposite direction. Just don't worry about it because it doesn't matter.
My preferred combos on my bikes: Continentals for wet winter riding and general alpine terrain where grip and puncture resistance is crucial : Der Baron Projekt in front and back Continentals for dry trails and tours: Trail King 2,4 ProTection front, Cross King ProTection in the back Schwalbe alternative: Magic Mary super soft, Hans Dampf pace star. (although I find conti tires better in every aspect) Maxxis for hardpack: Maxxis Minion DHF front, Maxxis Minion SS rear. If SS offers too little grip, DHR II in the back. Maxxis is probably best for setting up tubeless. Pop it up and forget about it. But tire choice is about as personal as condom choice to tell the truth. :)
lux Jesus. Too many variables. Riding is affected by too many things to introduce all those decisions. Sleep, diet, needing a shit, how busy the trails are, temperature etc etc same half decent tyres from black Friday or the sales all the time for me.
@@Cous1nJack There is no Jesus to be found in me. I don't know about you, but needing to take a shit doesn't influence the trail conditions for me, as I never shit on the trails... Where I ride, we don't have sharp rocks, so really heavy casing tires don't make much sense, except in wet winter conditions with snow (I don't know if you ride in snow), because tougher casing is usually combined with a grippier tire. When I go on vacation to the Alps, the tires I ride back on home trails get slashed, so one needs to change for something suitable. Combine that with two bikes with two different wheelsizes (plus two bikes of my girlfriend with two different wheelsizes) and the fact that you rarely get the same tires discounted twice you end up with good enough choice of tires that you are able to ride back home to take a dump and not leave it out on the trail.
rapid rob ain't new. is exactly like the old racing ralph thread pattern without the new technologies and compounds etc. the same goes with tough tom where it is what used to be nobby nic.
I am 1x12 and you are in 1st and pedal backward it is going to drop gears. Put it in 4th gear and it stays put going backward. the angle of attack is the problem. I asked the shop to check it out and they said nothing can be done about it. The chain is quite and shifts perfectly. Trex ex fuel 29.
Can you do a video on the best tyres for all year round for a mixture of slippery mud and hard compacted mud and for a mixture of xc trails and downhill trails
So pissed. I was super hype about my new maxxis tires coming in the mail this morning and i was unaware that only one tire was gonna come in the mail if I only bought one. Didn’t even consider having to buy 2 tires, I thought it would just come with 2.
I'm riding the Schwalbe fat albert up front and the conti mountain king for winter beacouse I had them laying around. In the summer im runninn a magic mary super gravity soft and a hans dampf 2 also super Gravity soft
Thsts v soft for summer...imo u would be way better switching ur tyres seasons...mary super soft is a winter mud/cold/wet tyre way more than fat Albert...which is for less slop harder conditions
Being 5'6" myself and having been shopping for a new XC bike, wheel size availability can be affected by frame size. Some brands (Trek, Cannondale,etc) don't make the small frame with 29.
J Hibes if you’re 5’6” and looking for 29” wheels, it might be worth trying a medium frame. You’re more likely to get a medium bike with an option of 29” wheels but it’s all up to size preference.
@@markroberts9298 Thanks for the advice. Actually, I am getting a medium 29 (Trek Top Fuel). But I would have needed a small in other brands to get a good fit. I was just sharing some information that I can across in my search.
In my experience winning the World Record MTB sprint 5km/10km aehy rode on Continental® 1 inch "road racer" tyres 100psi for training Avocet Cross® 1.25 inch "Olympus" 90psi for off road rear Avocet Cross® Olympus and front Trek® "Grainger" 90psi capable, if you want to do serious "drop-offs" you need Trek Grainger front/rear and squeeze in motorcycle tubes say the front wheel tube from a Yamaha XT600 it runs at 5psi and won't ever puncture.
JWB Agri Videos true, but it’s a trade off between RR and grip on mud etc for me. I’ve run Magic Marys which are mental in the mud but miserable riding them on tarmac.
Ok, the best aggressive XC maxxis tire combos for summer and for winter? I got 3 sets of wheels, I only ride maxxis(yeah, I'm that closed-minded), what combos would you put in 3 sets of wheels that can literally handle everything? Giant Anthem 3, alluminium 27.5.
Hi Doddy, I'm amazed that tire makers have yet to adopt a system of load ratings a la car tires. I also don't understand why they dont step outside their box and develop alternative aspect ratios. Granted, they don't use belted radial construction, yet they experiment with a variety of liners and tpi combinations for the same effect; it behooves them to adopt a load rating system. Consumers can understand the sidewall implications based on a tire's load rating. I'm always perplexed at how in many cases i can find an oem Michelin car tire for half the price of a 29er tubeless tire. While on the topic of tires, here's a crazy idea, instead of creating a half dozen different tread patterns for the same use case, just widdle it down to two or three and drop the retail price by 30%. Since I've started riding in 2013, I've only seen tire prices escalate. Instead of competition driving prices down, I just have more options to blow 80+ bucks on a tubeless tire.
Most people dont even know the size of their car tyres, even if they look, let alone load ratings or even speed ratings...and similarly imo most riders likely dont know durometer from a sipe.... most mtb tyres still role at max psi based on the myth that makes them faster off road...(on hard road yes it could, I know)
#AskGMBNTech I just bought my first real mountain bike! My question is, the bike I purchased comes with tubeless ready tires, should I take out the tubes and go tubeless right away or should I get some use out of the tubes first? If I take them out right away I will try to find other uses for them: give them away, use for my chainstay, etc. I would not mind hearing what the comment section has to say about this either. Thanks!
Hi Doddy, I’ve been a total muppet and in haste and a bit off faff induced frustration put Maxxis tyre on wrong way round when sitting up tubeless. The tyre is now on really well, holds pressure and I’m doing Kielder Chiller at the weekend. Am I better living with rotation arrow pointing wrong way or should I bite the bullet and change it round? It is a Maxxis Minion DHF on the front. Thanks, love the show 😀
Dear sir: I am about to take off on an bikepacking trip tonight. I will be in the dirt tonight in a tent. In the AM, I plan to summit blue mountain in Grand Terrace. You can literally google blue mountain in grand terrace california and see the summit I plan to do in the morning. I will be base camping tonight, and leave my pack at base. Cheers. I am going to have soooo much fun! I don't bring stoves. I soak my food and eat my food. : ) cheers.
Please use only tires that are tubelessready i had so much problems even with good tires. I tried it with and old Conti Mountainking mk2, i needed a long time to seal it, it sweatet out a lot of sealeant and after all, a hard rainy ride, the sealent of the sidewall washed out !!! and the tires began to loose air....
Continentals are notorious for leaking sealant, there is better tires available for TL setups. Altough Continental have claimed the tires they launched in 2019 works better in TL setups without leaking as much sealants through the walls but i guess thats only when using Continentals own sealant.
@@Jeppelelle Continental Tires actually work really well tubeless, even 2017 ProTection models (Race Sport are not meant to be tubeless at all), BUT one has to use their REVO sealant and prepare the tire according to their instructions (brushing the inside of the tire with sealant and adding as much sealant as they specify). They do not work with Stan's at all. The 2018 models of Mountain King ProTection 2,3 and Der Baron Projekt 2,4 work like a dream and get seated on the bead even with a floor pump!
I use CST Rock Hawks that are not tubeless rated but they have never leaked sealant. they also have a great grip. The only complaint I have is they can ball up in slimy mud.
I have swalbe nobby nic in the chepest version at 25€ non folding 26” 2,1 and 2,35, they sealed up perfect first time, and stays inflated with Stans sealant....
The derailleur adjustment wont effect Back pedal chain drop, as the drop or shift of the chain is coming from the top...adjusting b tension or upper limit wont effect BACKpedal drop from first at all! it Could be chainline, or alignment issues, or just some do that...eagle 12 speed renowned for it...as google attests to... u shouldnt really backpedal much.tho...
Doodie a quick question as my local suspension shop has drawn a blank. Do you know if they still make service kits for the rock shox super deluxe that came on GT Lts with the trunion mount. Many thanks Nick
Why don't people use 29" on the back and 27.5" on the front especially for downhill my thinking is it would give more speed and grip on the front as there's more tread, or am I just being stupid?
Brother i just want to ask what is the best width of tire i put in rear 27.5x 2.4 or 27.5x 2.5 The tire I chose is maxxis dhr my front is assegai 27.5x 2.5
Correct me if I'm wrong but the larger the tire the longer the tires will last on a Bike. I just started riding bikes. I rode Bikes all the time when I was little
#askgmbntech tips on keeping feet planted on flat pedals? I tend to have my feet come off while in the air, even small table tops. Don’t want to go to clips just yet.
#AskGMBNTech Since you were talking about derailleur adjustment... I just can't eliminate the noise from my rear derailleur while pedaling. I've adjusted the limit screws and the indexing serveral times but it won't go away. The cog looks to be perfectly alined with the casette and I've just switched out my derailleur hanger. I've also checked my B-Tension screw and there is enough room for the chain, so what on earth could cause that?
I have a similar issue. I just installed a complete xt drivetrain brand new I have adjusted everything correctly it shifts smoothly but the cassette jingles as the chain goes around
Dry chain? Or bed in. Or bent hanger (u still have to check and maybe adjust brand new ones with special tool, esp on 11 or 12 spd). Or incorrect cable tension..or cable friction/stickyness. Replace often. Shimano Optislick are unquestionably the best...not normal shimano cables in halfords...only Optislick ones...work for sram/any brand gears also. And way way better than sram cables (I use optislick cables on my sram eagle)
@@rupedog I've fully cleaned the chain and lubed it again. The thing is even with the cable disconnected and the limit screw adjusted for the largest gear, there is still noises. So I don't think it's because cable tension. I'm using a 3x7 drivetrain, no 11 speed.
#AskGmbnTech Hi Doddy. I’m looking to buy a new pair of tyres for my XC bike as the stock tyres that came with the bike (which I bought in August last year) are beginning to show signs of wear and I’ve noticed they aren’t holding air as well as they did before (they are tubeless). My tyres are 29” and I live in Australia, so it’s quite quite dry and dusty at the moment and even when it rains and I ride the local trails they are still quite dusty. I’d prefer a Maxxis Tyre as that is what is sold at my local bike shop. Thanks!
@ I have a Rockrider 9.1 with 26in wheels ,my Rockshox Recon has some damage which with your help fix for now. I will need to replace it in the future, could I put a 27.5 wheel and fork on my bike. Would that mess up my geometry of the frame too much? I already have offset bushes fitted and a 50mm stem.Thanks Stuart
Hi Doddy,top show,i was recently was a lucky winner of a gmbn comp,so chuffed to win something especially for my bike.I was a winner of a set of crank brother stamp 1 composite pedals.When they arrived I was impressed by the look and size of the footprint of them and eagerly wound them onto my cranks and try them out..........massive disappointment,just 5 minutes into my morning blast I turned around and headed back to the shed to put my Sam Hill Nukeproofs back on.What is your opinion on composite pedals Doddy,these stamp pedals where so slippy and contact with the pins was poor due to the high axle section,I wear Five Tens which struggled to grip the pedals.They have been demoted to spares....but I think I would favour my other spare(DMR V12)before i would risk using the stamp pedals. Cheers Doddy ,Brummie Rob.
Hello I need help I’ve got a gt chucker 3.0 I’m slowly sorting it out it will be an off road only but finding it hard to find a good set or tyres please can you help me
#AskGMBNTech Hi GMBN great work as always, I'm currently riding the specialized Fuse plus bike and was thinking of changing the tyres from the original 3" to a 2.6" but looking to keep the 45mm rims. Can this be done and what tyre would you recommend for the job, I understand the wheel profile will have a square finish.
#askgmbntech hey doddy, my name is Mitch, I'm from Minnesota. I want to get a shorter stem for my trail bike, and wanted to see ur take on how to pick 1 out for my riding style. Can u do a episode on how to pick out stems? Thnx..
#askgmbntech Hi dod, as many of you are running Canyon bikes, I would like to ask if the wheelset (Dt Swiss rims M1900/E1900) can you use any tubeless valve or must you use the DT Swiss tubeless valve as there is a special grove on them?
#askGMBNtech Suup homey Migs from south florida stateside Wondering what you think of running wider fronts then rears.? Conditions here are mostly dry and sandy, roots, rocks. Rare the park that has hard packed dirt. Id consider myself a novice/base XC racer
#AskGMBNTech. Hey Doddy love your vids. I got one question for you, i bought a deore m6000 medium cage derailleur and its shifter and a 11-42 teeth cassette with a 36 t chainring up front. My question is why does my derailleur' jockey wheels rubs on the casstte teeths when changing to a larger gear and gets stuck? Do i need an extension for my hanger?
#AskGMBNTech I have a 2018 Specialized Pitch comp 27.5 hard tail the drivetrain is a shimano acera rear derailleur and Altus front derailleur it is a 3X9 cassette I was wondering if it was worth converting to 1x10, 1x11, 1x12 as I am jealous of my dad my mates and his friends. The area I ride is very not flat and hills are very common as I need a really big and little gear
Slime pro tubless sealant (NOT their tubed or atv stuff!) Is great, I have never ever had it dry out, even over a year. Seals normal thorn/nail holes well. But doesnt seal massive screwdriver sized stab wounds as well as stans race, if u get a lot of those sorts of punctures! So it copes more than well for real world stuff, and no balling/drying and doesnt smell (like finishline stuff). Most sealant tests just work on what seals biggest hole, but thats far from real world. Convenience and drying is never a major factor, but to me it is...more faff, less riding
#AskGMBNTech I've bought a Voodoo Hoodoo as a cheap hardtail for winter use and mucking about and to save wear on my FS bikes and it comes with a chainset with an odd BCD for the chainring. I'd like to drop it down to a 32T from the 34T it came with but I can't find a chainring to fit. It has a BCD of 80mm with 4 bolts at 90' (so the SRAM ones don't fit), the only chainring I can find that fits is one by Blackspire but finding one of the 32T ones they make seems to be harder than finding a unicorn in a tutu giving away free hotdogs!! Any ideas on alternative manufacturers or do I have no option but to change the chainset out for a regular one with a normal BCD? Thanks!
Since you need a new chainring, might as well just buy a new crankset. You might need a new bottom bracket to match it but if you get the lower end models (no need for high stuff for winter riding) and you migjt be surprised at how affordable it is versus trying to find a compatible and expensive chainring that's going to wear fast.
Hi Doddy #AskGMBNTech, recently bought a pair of mtb wheels few months ago (Fulcrum Red Zone 7 29er, 23mm internal rim width, 28 holes, straight pull). I want to increase my inner rim width by buying a pair of 30mm int. width rims (DT Swiss Rim 29" Cross Mountain M 502 ). I want to save a little bit of money by doing the rim swap myself and just bring my wheels to my LBs for proper true and tension. Any help on what to be aware of aside from the number of nipple holes? Can i use the same nipples and spokes? Thanks very much and keep up the good work on the channel!
#askgmbntech Hey I Doddy, great show. I finally have a full sus and just got a Trance 27.5 4 anfd it has a Giant branded rear shock with only one dial which I understand to be rebound. Are these any good at all and any setup tips?
#AskGMBNTech new to mountain biking, I live in Central coast California the trails around me are hard dry sand and some parts are looser sand. What type of tire should I look for?
#askgmbnteck if i where to purchase some or those Chinese ALU jockey wheels from eBay and run them on a SRAM NX mec wouldni need to make any adjustments as they are generally smaller by one or two teeth compared to the OEM
#AskGMBNTech , is it possible for me to upgrade my Shimano 10 speed cassette to a SRAM NX Eagle 12 speed, without having to replace the freehub body? I know the SRAM NX Eagle uses Shimano freehub spline style, but I'm wondering if the 12 speeds fit in the space of the 10 speed. Hope someone can answer, love the show.
hi Doddy, I have some old Dot 5.1 brake fluid. People say that Dot fluid absorb water over time. That water in the break system result in bed braking performance. When I heat up the Dot fluid over 100°C the water should evaporate. As a result I should have water free Dot fluid. Can you recommend my methode? #AskGMBNTech
U cant refresh dot by evaporation of water! ...plus its cheap..go buy new and take old to recycling centre...u will spend more in gas/electric trying to heat to boil off that a small bottle of fluid costs!
#AskGMBNTech 1st I would like to say that I love your shows and videos that you publish and have already ordered my 1st GMBN SS Jersey and Socks. I have not long got into Mountain Biking purchasing a Boardman MTR 8.9, which I believe will get me introduced to the sport for the moment. I am making my 1st upgrade this weekend with a RockShox Reverb Dropper Post, but looking at replacing both tyres, which at the moment are not the best. I have been looking at Maxxis High Roller II and Continental Trail King. So if you do not mind, do you have any other recommendations or suggestion towards a better tyre. Currently I am on Blue Trails, Which is compacted Dirt with gravel on top, but soon will be looking at going on Dirt, Gravel, Roots, Rocks etc, at Cannock Chase and then hopefully Sept, give Bike Park Wales a shot. Matthew
#askgmbntech Im 6ft4 and 90kg, pretty similar size and build to doddy. I struggle to pick the front wheel up on my Trek Roscoe 8 2018 (21.5"), is it just harder for somebody my size to get far enough back on a bike as big as this? Or do i just need more practice?
#AskGMBNTech Hi Doddy, I am a downhill racer and I am looking to buy some new brakes. Until now I have found Shimano SLX M7000 and Shimano XT BL-M785. Which one would you recommend between this two ?
#AskGMBNTech hi doddy I've never seen any of the gmbn channels speaking about Whyte bikes, in general, I was wondering 1 if you will be making any videos about the whyte bikes and 2 what's your opinion on them.
#AskGMBNTech Hi doddy i have a question of tire clearance i have 10mm clearance both sides on my frame im planning to change my tires to 2.40 does it fit my frame and i have 28mm rims thanks
If you've got any questions for us leave them in the comments below using #AskGMBNTech
#askGMBNTech. would u ever consider going to rostrevor in N.I. look it up. amazing trails all public
#AskGMBNTech Hi Doddy. Is the heat from the brake disk will damage my brake and can i upgrade the size of my brake disk from 160 to 200++. Or there another way to avoid a very high heat on the disk when DH. Thanks🤔
#AskGMBNTech. HI Doddy. I am currently running a Shimano zee derailleur on a nine speed cogs (11t-32t) with nine speed shifter (Shimano alivio), do you got any tips to make it shift more accurate?.
#AskGMBNTech Please make video about what to do with new bike out of box.(bolt check, brake alighment,...)
#AskGMBNTech Were 12 speed casets devoped around 148 mil (Boost)rear hubs? For chain line it would make sence so the bigger sorockets werent to inbord
#AskGMBNTech Hi Doddy, can u explain rim widths, inner outer etc and tire widths ranges that can fit to the various inner width of the rims? thanks
In reference to lower TPI's: "a bit weak really" - The higher the TPI the lower the puncture resistance, and lower the general resilience - not the other way round - As the threads in a lower TPI tyre are literally thicker. But the higher the TPI the greater the degree of suppleness of tyre, and a generally better ride quality. - Seriously guys surely you know this.
Edit: Added thread thickness info.
You're correct.
The lower the TPI, the stiffer the casing, and the more resistant it is.
Not that simple...as thread thickness is not correlated to tpi...
@@rupedog True. But the general rule is that lower tpi tires have thicker treads.
@@rupedog I'm sorry but you're going to have to quote your source on that please. There is plenty of information out there to say that it is.
I think the following expresses where the confusion may arise from. Taken from schwalbe.com - Please take note of the section highlighted with asterisks.
"The density of the carcass fabric is expressed in EPI or TPI (Ends Per Inch, Threads Per Inch). The range of carcasses used, for example, for bicycle tires are 20, 24, 37, 50, 67 and 127 EPI.
In principle, the more close-meshed a carcass is woven, the higher the quality of the tire. A dense carcass is important for low rolling resistance and good riding properties. At the same time, puncture protection increases, because carcasses with a high strand density are difficult to puncture.
**** However, this does not apply to the extremely fine 127 EPI carcasses, as each strand is sheer and quite vulnerable. The best compromise for low weight and resistance is around 67 EPI.
****
In most of our top tires we use a 67 EPI carcass. Weight and rolling resistance can be reduced even further by using a 127 EPI carcass. But at the same time, these tires are more vulnerable to damage. Therefore, we intentionally use the 127 EPI carcasses only for light competition tires, where weight is an important factor."
- The following is from sheldonbrown.com
"Some tires use thick thread, some use thin thread for the fabric. With thin thread, there are more threads per inch ("TPI") and this number is often considered an important indication of tire performance."
27,5 perfect ! Im running tubeless Shalwbes with all round tyres nobby ! the newest set up !
Doddy you were wrong on 8:40 Coen Dost question, he’s asking for back pedaling. It seems his chain line isn’t perfect so it’s quite natural the chain drops from biggest rear cog.
Yeh the derailleur adjust wont really sort BACK pedal drop...doddy didn't seem himself today imo?
The channel is great, I just started getting into MTB. All the video's really help, especially the tech video's about maintenance. I'm currently building up my tools, as I want to do all my own maintenance. Also running an older bike (2012 Giant Trance), it's in good shape put I imagine will need to be well maintained to stay that way.
I am running Hutchinson front and rear.
27.5" Cobra 2.10 127 Tpi Front Tubless
27.5" Python2 2.10 127 Tpi Back Tubless
On MavicCrossMax Elite, works like a charm for XC !
The prefect set up for my 29 inch nukeproof mega is Michelin wild enduro on the front and a wild am on the rear you get the grip on the front and support in the rear
Another great episode Doddy. Explained the tyre dilemma well
Bollocks on 'tubeless ready' tires - I've heard the same spiel from bike shop 'experts'. I've successfully run cheap Kenda tube types with the same amount of sealant that high end tubeless casing Schwalbe tires required. Just this week I successfully mounted old tube style, 60 TPI WTB Bronsons on my 2009 era 26" Mavic 717 tube only rims - theoretically impossible, but after two hard rides, they're completely airtight. It's a tricky setup, as those old rims have that gap where the ends of the rim are just tacked together, requiring perfect rim tape/tire bead alignment, but it's not impossible. Any decent sealant will permeate tire walls in about 24 hours.
I’ve been riding Continental Mountain Kings front and rear for the past few months, and they roll fast and grip well here, which is impressive because all my trails are covered in sand! The one thing you definitely need to know before purchasing is that (at least in 29”) the tire is .2 inches narrower than advertised, so the 2.2 inch is actually 2.0, and the 2.4 is actually 2.2.
backpedal chain drop is a common issue and a "benefit" of 1x drivetrain. LoveMTB tested 3 chains and some are better than others
Yes, and the presenter completely misunderstood the question! Adjusting the rear mech won't have any influence on it. When pedalling backwards it's the widely displaced chain line of a 1x that will unseat the chain from a sprocket.
Coen Dost When you are in the largest cog and you pedal backwards the chain falls down it is because of cross chaining i suggest you try experimenting some spacers in your crankset so the chain line won't be so stressed.
Chain falling off in big cog when _backpedalling_ is almost always chainline a bit far outboard. Move BB/spindle spacers is possible (e.g.: Raceface), or put some thin spacers/washers between the chainring and crank.
Justin White then put the high gear out of line. I don’t back pedal on my 46t I’m winching uphill in that gear
@@Cous1nJack maybe, maybe not that it would make the small CoG skip. Obviously you wouldn't just shove 5mm of spacers in, have to move in small increments (raceface spindle spacers are 1.5mm IIRC).
You've never had to ratchet-pedal up something steep and gnarly? Because that's back-pedaling while climbing...
I'm sure Doddy knows, but back pedaling chain drop can also be related to chainline. Even with a perfectly adjusted deraileur, straight hanger, brand new chain/cassette if the chainline is off from the chainring/BB spacing you can have it drop on back pedal.
Not really anything to do with derailleur adjustment...backpedal drop
I run the maxxis Ardent on my front and the maxxis crossmark on my rear this is a great set up and i would highly recommend it
And for my race set i use the schwalbe nobby nic on the front and the rapid ralph on the rear agian really good combo
I've the Continental Baron and it's a very good allround tire!
good flat protection
and good durable rubber
Andi Gamisch and very high rolling resistance. I think my next rear tyre is a trail king. For trails the baron is the best tyre i ever had.
@@MaxMustermannnnnn no the rolling resistance is ok
Andi Gamisch they have much more rolling resistance as the bontrager xr4 but a lot more grip too.
@@MaxMustermannnnnn I find the rolling resistance difference between the baron and the trail king very minor to non-existent.
ok, the the baron is my next tyre too.
Doddy, whats your opinion on the ever changing rim to tire sizing? I've got a set of 27.5 stans major (38 internal) setup with 2.8 tires that are great in the right conditions but would like to put 2.5 for the majority of the time. It seems every manufacturer of wheels/ tires has a different opinion on rim to tire compatibility, thoughts? #AskGMBNTech
On my serious Rockville hardtail comp series upgraded hydraulic disc bike I use the default tyres they are the meghna 2620 tyres 27.5 inch with 2.5inch width the tube in it is quite robust also and the tyres are in it are quite durable and for a Schrader tube setup they hold the air amazingly well I last pumped it up on Monday when I first got the bike and it's still brick solid i pumped them up to 55psi took it on trails and canal paths I had the speed, durability grip and comfort out of these German made tyres the rims are amazing stock also my gear set is a 3by 8 drive drain the shimano tourney 2019 model it's a medium end set but stock the shifting is precise with no delay and fast firing shimano thumb shifters i enjoyed the serious Rockville comp series better than most British made high end mtb bikes I paid 429 quid for the comp series by serious out of bikester online shop
Recently put the new Kenda Nevegal-x pro's on my MTB. Great for the loose rocky trails around my trails. Price is good too! Running 26 x 2.3's. Roll pretty quick and grip super well. I was able to do a couple technical descents like it was nothing! Couldn't do that on my old tires.
Recommend the Maxxis Aspen tires. Best tires I've ever raced with. They are really light, fast rolling but also works great in muddy conditions because the mud falls of easily
Defo need a tyre vid as sooo much more to it than that...not least Grip! And durometer (compound 'hardness') is not a linear relationship to rolling speed...depends on the rubber mix, additives, quality etc...one brands 50d will roll faster than another brands 55 etc . the tread pattern, sipes, block stiffness, block design, clear edge channels or offset sideknobs, width...there is LOADS to it. Simple advice, decided terrain type (hardpack, slop etc), riding temp, riding style, BUDGET, and than match tyre to that...noting to have more grippier on the front (whether 'grippier' is by softer, wider - or narrow in mud - tread design etc etc etc)
Coen Dost. I think you need a wolf tooth road link. I put a 11-34 cassette on my old 26er giant. It would work fine for a 30 mins of a ride then I would loose the lowest gear. Wold tooth road link costs around £25.
No adjustment of the derailleur will stop the chain from shifting when pedaling backwards. The guide pulleys cant effect that because its spinning in the opposite direction. Just don't worry about it because it doesn't matter.
I have the WTB RANGER 27.5x2.8 & love 'em for what I do..…..'cept I always put the air in upside down when filling them tyres
Scary on wet cobbles even
The 2.8
I use trails that are bone dry loose over hard limestone. Maxxis Crossmark are just the job.
My preferred combos on my bikes:
Continentals for wet winter riding and general alpine terrain where grip and puncture resistance is crucial : Der Baron Projekt in front and back
Continentals for dry trails and tours: Trail King 2,4 ProTection front, Cross King ProTection in the back
Schwalbe alternative: Magic Mary super soft, Hans Dampf pace star. (although I find conti tires better in every aspect)
Maxxis for hardpack: Maxxis Minion DHF front, Maxxis Minion SS rear. If SS offers too little grip, DHR II in the back. Maxxis is probably best for setting up tubeless. Pop it up and forget about it.
But tire choice is about as personal as condom choice to tell the truth. :)
lux Jesus. Too many variables. Riding is affected by too many things to introduce all those decisions. Sleep, diet, needing a shit, how busy the trails are, temperature etc etc same half decent tyres from black Friday or the sales all the time for me.
@@Cous1nJack There is no Jesus to be found in me.
I don't know about you, but needing to take a shit doesn't influence the trail conditions for me, as I never shit on the trails...
Where I ride, we don't have sharp rocks, so really heavy casing tires don't make much sense, except in wet winter conditions with snow (I don't know if you ride in snow), because tougher casing is usually combined with a grippier tire. When I go on vacation to the Alps, the tires I ride back on home trails get slashed, so one needs to change for something suitable. Combine that with two bikes with two different wheelsizes (plus two bikes of my girlfriend with two different wheelsizes) and the fact that you rarely get the same tires discounted twice you end up with good enough choice of tires that you are able to ride back home to take a dump and not leave it out on the trail.
rapid rob ain't new. is exactly like the old racing ralph thread pattern without the new technologies and compounds etc. the same goes with tough tom where it is what used to be nobby nic.
I am 1x12 and you are in 1st and pedal backward it is going to drop gears. Put it in 4th gear and it stays put going backward. the angle of attack is the problem. I asked the shop to check it out and they said nothing can be done about it. The chain is quite and shifts perfectly. Trex ex fuel 29.
I replaced the Bontrager XR2's on my Trek Marlin 7 (too many flats) with the Continental Trail Kings 2.3. Fast and indestructible.
Can you do a video on the best tyres for all year round for a mixture of slippery mud and hard compacted mud and for a mixture of xc trails and downhill trails
So pissed. I was super hype about my new maxxis tires coming in the mail this morning and i was unaware that only one tire was gonna come in the mail if I only bought one. Didn’t even consider having to buy 2 tires, I thought it would just come with 2.
I'm riding the Schwalbe fat albert up front and the conti mountain king for winter beacouse I had them laying around. In the summer im runninn a magic mary super gravity soft and a hans dampf 2 also super Gravity soft
Thsts v soft for summer...imo u would be way better switching ur tyres seasons...mary super soft is a winter mud/cold/wet tyre way more than fat Albert...which is for less slop harder conditions
One of the most helpful videos for me on the channel great video
Being 5'6" myself and having been shopping for a new XC bike, wheel size availability can be affected by frame size. Some brands (Trek, Cannondale,etc) don't make the small frame with 29.
J Hibes if you’re 5’6” and looking for 29” wheels, it might be worth trying a medium frame. You’re more likely to get a medium bike with an option of 29” wheels but it’s all up to size preference.
@@markroberts9298 Thanks for the advice. Actually, I am getting a medium 29 (Trek Top Fuel). But I would have needed a small in other brands to get a good fit. I was just sharing some information that I can across in my search.
J Hibes All good 👍
In my experience winning the World Record MTB sprint 5km/10km aehy rode on Continental® 1 inch "road racer" tyres 100psi for training Avocet Cross® 1.25 inch "Olympus" 90psi for off road rear Avocet Cross® Olympus and front Trek® "Grainger" 90psi capable, if you want to do serious "drop-offs" you need Trek Grainger front/rear and squeeze in motorcycle tubes say the front wheel tube from a Yamaha XT600 it runs at 5psi and won't ever puncture.
How do you choose a tire when you ride 65% city streets 35% trails and downhill mountain parks. I was looking at the trail king. P.S. love the show.
I’m running the Rapid Rob and I love it! Great rolling and sufficient grip for most trails. Also they’re £10 each 👍
HappyJack damn you must go through a lot of pads 😂😂
Where from!?
I used to run rapid robs but not the best I’m muddy conditions
Wynn Vids CRC unless they’re out of stock or Bike24 in Germany are cheap too.
JWB Agri Videos true, but it’s a trade off between RR and grip on mud etc for me. I’ve run Magic Marys which are mental in the mud but miserable riding them on tarmac.
Ok, the best aggressive XC maxxis tire combos for summer and for winter? I got 3 sets of wheels, I only ride maxxis(yeah, I'm that closed-minded), what combos would you put in 3 sets of wheels that can literally handle everything?
Giant Anthem 3, alluminium 27.5.
Hi Doddy, I'm amazed that tire makers have yet to adopt a system of load ratings a la car tires. I also don't understand why they dont step outside their box and develop alternative aspect ratios. Granted, they don't use belted radial construction, yet they experiment with a variety of liners and tpi combinations for the same effect; it behooves them to adopt a load rating system. Consumers can understand the sidewall implications based on a tire's load rating. I'm always perplexed at how in many cases i can find an oem Michelin car tire for half the price of a 29er tubeless tire. While on the topic of tires, here's a crazy idea, instead of creating a half dozen different tread patterns for the same use case, just widdle it down to two or three and drop the retail price by 30%. Since I've started riding in 2013, I've only seen tire prices escalate. Instead of competition driving prices down, I just have more options to blow 80+ bucks on a tubeless tire.
Most people dont even know the size of their car tyres, even if they look, let alone load ratings or even speed ratings...and similarly imo most riders likely dont know durometer from a sipe.... most mtb tyres still role at max psi based on the myth that makes them faster off road...(on hard road yes it could, I know)
#AskGMBNTech I just bought my first real mountain bike! My question is, the bike I purchased comes with tubeless ready tires, should I take out the tubes and go tubeless right away or should I get some use out of the tubes first? If I take them out right away I will try to find other uses for them: give them away, use for my chainstay, etc.
I would not mind hearing what the comment section has to say about this either. Thanks!
You should always carry a spare tube in case you flat on the trail, go tubeless and keep them as spares
#AskGMBNTech Can you provide some basic guide between tire size and rim width ?
Hi Doddy, I’ve been a total muppet and in haste and a bit off faff induced frustration put Maxxis tyre on wrong way round when sitting up tubeless. The tyre is now on really well, holds pressure and I’m doing Kielder Chiller at the weekend. Am I better living with rotation arrow pointing wrong way or should I bite the bullet and change it round? It is a Maxxis Minion DHF on the front. Thanks, love the show 😀
This video was very useful and will save a lot of money, Thank you GMBN
Hutchinson cougar tires are great too!
Chainline , crankset spacing/offset effects back pedalling , shift up a gear or two and it will be gone
Can you please make a video on what bike to choose.
Dear sir: I am about to take off on an bikepacking trip tonight. I will be in the dirt tonight in a tent. In the AM, I plan to summit blue mountain in Grand Terrace. You can literally google blue mountain in grand terrace california and see the summit I plan to do in the morning. I will be base camping tonight, and leave my pack at base. Cheers. I am going to have soooo much fun! I don't bring stoves. I soak my food and eat my food. : ) cheers.
When are we going to get an update on the Nukeproof ARD inserts? I’ve been really interested to hear about these. Keep up the good work.
buyers guide for tyres would be nice, but why not with studded tyres too.
Great Video Doddy ,top class as usual thanks.
Please use only tires that are tubelessready i had so much problems even with good tires.
I tried it with and old Conti Mountainking mk2, i needed a long time to seal it, it sweatet out a lot of sealeant and after all, a hard rainy ride, the sealent of the sidewall washed out !!! and the tires began to loose air....
Continentals are notorious for leaking sealant, there is better tires available for TL setups. Altough Continental have claimed the tires they launched in 2019 works better in TL setups without leaking as much sealants through the walls but i guess thats only when using Continentals own sealant.
@@Jeppelelle Continental Tires actually work really well tubeless, even 2017 ProTection models (Race Sport are not meant to be tubeless at all), BUT one has to use their REVO sealant and prepare the tire according to their instructions (brushing the inside of the tire with sealant and adding as much sealant as they specify). They do not work with Stan's at all.
The 2018 models of Mountain King ProTection 2,3 and Der Baron Projekt 2,4 work like a dream and get seated on the bead even with a floor pump!
I use CST Rock Hawks that are not tubeless rated but they have never leaked sealant. they also have a great grip. The only complaint I have is they can ball up in slimy mud.
I have swalbe nobby nic in the chepest version at 25€ non folding 26” 2,1 and 2,35, they sealed up perfect first time, and stays inflated with Stans sealant....
I don’t have any problem with a tube. If it ain’t broke.
The derailleur adjustment wont effect Back pedal chain drop, as the drop or shift of the chain is coming from the top...adjusting b tension or upper limit wont effect BACKpedal drop from first at all! it Could be chainline, or alignment issues, or just some do that...eagle 12 speed renowned for it...as google attests to... u shouldnt really backpedal much.tho...
I have a 100% aircraft helmet and racecraft goggles and my goggles fog. Do you recommend to take off the foam that protect the vents on my goggles?
Doodie a quick question as my local suspension shop has drawn a blank. Do you know if they still make service kits for the rock shox super deluxe that came on GT Lts with the trunion mount. Many thanks Nick
Thank you for answering my question!
@NAX276The Minion ss from Maxxis are also pretty god
Why don't people use 29" on the back and 27.5" on the front especially for downhill my thinking is it would give more speed and grip on the front as there's more tread, or am I just being stupid?
Brother i just want to ask what is the best width of tire i put in rear 27.5x 2.4 or 27.5x 2.5
The tire I chose is maxxis dhr
my front is assegai 27.5x 2.5
Correct me if I'm wrong but the larger the tire the longer the tires will last on a Bike. I just started riding bikes. I rode Bikes all the time when I was little
#askgmbntech tips on keeping feet planted on flat pedals? I tend to have my feet come off while in the air, even small table tops. Don’t want to go to clips just yet.
I have a bike and it has skinny tires. Can I put thicker tires on and has disc brakes?
#AskGMBNTech Since you were talking about derailleur adjustment... I just can't eliminate the noise from my rear derailleur while pedaling. I've adjusted the limit screws and the indexing serveral times but it won't go away. The cog looks to be perfectly alined with the casette and I've just switched out my derailleur hanger. I've also checked my B-Tension screw and there is enough room for the chain, so what on earth could cause that?
Might be the derailleur hanger
@@ryan240sx2 I switched the hanger yesterday for a brand new one. Still rattling noises
I have a similar issue. I just installed a complete xt drivetrain brand new I have adjusted everything correctly it shifts smoothly but the cassette jingles as the chain goes around
Dry chain? Or bed in. Or bent hanger (u still have to check and maybe adjust brand new ones with special tool, esp on 11 or 12 spd). Or incorrect cable tension..or cable friction/stickyness. Replace often. Shimano Optislick are unquestionably the best...not normal shimano cables in halfords...only Optislick ones...work for sram/any brand gears also. And way way better than sram cables (I use optislick cables on my sram eagle)
@@rupedog I've fully cleaned the chain and lubed it again. The thing is even with the cable disconnected and the limit screw adjusted for the largest gear, there is still noises. So I don't think it's because cable tension. I'm using a 3x7 drivetrain, no 11 speed.
What to look for in the tire:
1. Price
2. What you use it for?
3. Compatibility with your bike frame/derailleur clearance
4. Brand/Quality
How can I change an 1 1/8 straight shaft fork to a tapered system?
#AskGmbnTech Hi Doddy.
I’m looking to buy a new pair of tyres for my XC bike as the stock tyres that came with the bike (which I bought in August last year) are beginning to show signs of wear and I’ve noticed they aren’t holding air as well as they did before (they are tubeless).
My tyres are 29” and I live in Australia, so it’s quite quite dry and dusty at the moment and even when it rains and I ride the local trails they are still quite dusty. I’d prefer a Maxxis Tyre as that is what is sold at my local bike shop.
Thanks!
@ I have a Rockrider 9.1 with 26in wheels ,my Rockshox Recon has some damage which with your help fix for now. I will need to replace it in the future, could I put a 27.5 wheel and fork on my bike. Would that mess up my geometry of the frame too much? I already have offset bushes fitted and a 50mm stem.Thanks Stuart
Hi Doddy,top show,i was recently was a lucky winner of a gmbn comp,so chuffed to win something especially for my bike.I was a winner of a set of crank brother stamp 1 composite pedals.When they arrived I was impressed by the look and size of the footprint of them and eagerly wound them onto my cranks and try them out..........massive disappointment,just 5 minutes into my morning blast I turned around and headed back to the shed to put my Sam Hill Nukeproofs back on.What is your opinion on composite pedals Doddy,these stamp pedals where so slippy and contact with the pins was poor due to the high axle section,I wear Five Tens which struggled to grip the pedals.They have been demoted to spares....but I think I would favour my other spare(DMR V12)before i would risk using the stamp pedals.
Cheers Doddy ,Brummie Rob.
Nice trip!
Hello I need help I’ve got a gt chucker 3.0 I’m slowly sorting it out it will be an off road only but finding it hard to find a good set or tyres please can you help me
Would you say most mountain bikes tires have a directional or non directional tread?
The rapid rob is just the old racing ralph pattern is it not?
#AskGMBNTech Hi GMBN great work as always, I'm currently riding the specialized Fuse plus bike and was thinking of changing the tyres from the original 3" to a 2.6" but looking to keep the 45mm rims. Can this be done and what tyre would you recommend for the job, I understand the wheel profile will have a square finish.
Front 2.4
Rear 2.3 is a good combination any advise. I run on some rough trails, rocks, roots etc.
#askgmbntech hey doddy, my name is Mitch, I'm from Minnesota. I want to get a shorter stem for my trail bike, and wanted to see ur take on how to pick 1 out for my riding style. Can u do a episode on how to pick out stems? Thnx..
4:05 what is with the maxxis minion ss?
Love GMBN Tech!
Is it smart to have a der kieser front and baron rear?
exactly what i was lookin for 🤙🏼👍
PERFECT!!
#askgmbntech Hi dod, as many of you are running Canyon bikes, I would like to ask if the wheelset (Dt Swiss rims M1900/E1900) can you use any tubeless valve or must you use the DT Swiss tubeless valve as there is a special grove on them?
#askGMBNtech Suup homey Migs from south florida stateside Wondering what you think of running wider fronts then rears.? Conditions here are mostly dry and sandy, roots, rocks. Rare the park that has hard packed dirt. Id consider myself a novice/base XC racer
Doddy looking smart today
#AskGMBNTech. Hey Doddy love your vids. I got one question for you, i bought a deore m6000 medium cage derailleur and its shifter and a 11-42 teeth cassette with a 36 t chainring up front. My question is why does my derailleur' jockey wheels rubs on the casstte teeths when changing to a larger gear and gets stuck? Do i need an extension for my hanger?
Harold if the b-tension screw is all the way in, the dereliur is too small/short, but that shouldent be the case...
#AskGMBNTech I have a 2018 Specialized Pitch comp 27.5 hard tail the drivetrain is a shimano acera rear derailleur and Altus front derailleur it is a 3X9 cassette I was wondering if it was worth converting to 1x10, 1x11, 1x12 as I am jealous of my dad my mates and his friends. The area I ride is very not flat and hills are very common as I need a really big and little gear
Frame size.. is there any reason a 6'2" tall person should get a small frame?
Any reliable sealant out there and don't cost much? I use caffelattex and it dries out real quick.
Slime pro tubless sealant (NOT their tubed or atv stuff!) Is great, I have never ever had it dry out, even over a year. Seals normal thorn/nail holes well. But doesnt seal massive screwdriver sized stab wounds as well as stans race, if u get a lot of those sorts of punctures! So it copes more than well for real world stuff, and no balling/drying and doesnt smell (like finishline stuff). Most sealant tests just work on what seals biggest hole, but thats far from real world. Convenience and drying is never a major factor, but to me it is...more faff, less riding
#AskGMBNTech I've bought a Voodoo Hoodoo as a cheap hardtail for winter use and mucking about and to save wear on my FS bikes and it comes with a chainset with an odd BCD for the chainring. I'd like to drop it down to a 32T from the 34T it came with but I can't find a chainring to fit. It has a BCD of 80mm with 4 bolts at 90' (so the SRAM ones don't fit), the only chainring I can find that fits is one by Blackspire but finding one of the 32T ones they make seems to be harder than finding a unicorn in a tutu giving away free hotdogs!! Any ideas on alternative manufacturers or do I have no option but to change the chainset out for a regular one with a normal BCD? Thanks!
Since you need a new chainring, might as well just buy a new crankset. You might need a new bottom bracket to match it but if you get the lower end models (no need for high stuff for winter riding) and you migjt be surprised at how affordable it is versus trying to find a compatible and expensive chainring that's going to wear fast.
Hi Doddy #AskGMBNTech, recently bought a pair of mtb wheels few months ago (Fulcrum Red Zone 7 29er, 23mm internal rim width, 28 holes, straight pull). I want to increase my inner rim width by buying a pair of 30mm int. width rims (DT Swiss Rim 29" Cross Mountain M 502 ). I want to save a little bit of money by doing the rim swap myself and just bring my wheels to my LBs for proper true and tension. Any help on what to be aware of aside from the number of nipple holes? Can i use the same nipples and spokes? Thanks very much and keep up the good work on the channel!
#askgmbntech Hey I Doddy, great show. I finally have a full sus and just got a Trance 27.5 4 anfd it has a Giant branded rear shock with only one dial which I understand to be rebound. Are these any good at all and any setup tips?
#AskGMBNTech new to mountain biking, I live in Central coast California the trails around me are hard dry sand and some parts are looser sand. What type of tire should I look for?
#askgmbnteck if i where to purchase some or those Chinese ALU jockey wheels from eBay and run them on a SRAM NX mec wouldni need to make any adjustments as they are generally smaller by one or two teeth compared to the OEM
#AskGMBNTech , is it possible for me to upgrade my Shimano 10 speed cassette to a SRAM NX Eagle 12 speed, without having to replace the freehub body? I know the SRAM NX Eagle uses Shimano freehub spline style, but I'm wondering if the 12 speeds fit in the space of the 10 speed. Hope someone can answer, love the show.
hi Doddy, I have some old Dot 5.1 brake fluid. People say that Dot fluid absorb water over time. That water in the break system result in bed braking performance. When I heat up the Dot fluid over 100°C the water should evaporate. As a result I should have water free Dot fluid. Can you recommend my methode? #AskGMBNTech
U cant refresh dot by evaporation of water! ...plus its cheap..go buy new and take old to recycling centre...u will spend more in gas/electric trying to heat to boil off that a small bottle of fluid costs!
#AskGMBNTech Hi Doddy, can you explain why some Mtb tires say 35-65 PSI when most people will run lower than 35? Thanks
#AskGMBNTech
1st I would like to say that I love your shows and videos that you publish and have already ordered my 1st GMBN SS Jersey and Socks.
I have not long got into Mountain Biking purchasing a Boardman MTR 8.9, which I believe will get me introduced to the sport for the moment. I am making my 1st upgrade this weekend with a RockShox Reverb Dropper Post, but looking at replacing both tyres, which at the moment are not the best. I have been looking at Maxxis High Roller II and Continental Trail King. So if you do not mind, do you have any other recommendations or suggestion towards a better tyre. Currently I am on Blue Trails, Which is compacted Dirt with gravel on top, but soon will be looking at going on Dirt, Gravel, Roots, Rocks etc, at Cannock Chase and then hopefully Sept, give Bike Park Wales a shot.
Matthew
#askgmbntech Im 6ft4 and 90kg, pretty similar size and build to doddy. I struggle to pick the front wheel up on my Trek Roscoe 8 2018 (21.5"), is it just harder for somebody my size to get far enough back on a bike as big as this? Or do i just need more practice?
#AskGMBNTech Hi Doddy, I am a downhill racer and I am looking to buy some new brakes. Until now I have found Shimano SLX M7000 and Shimano XT BL-M785. Which one would you recommend between this two ?
#AskGMBNTech hi doddy I've never seen any of the gmbn channels speaking about Whyte bikes, in general, I was wondering 1 if you will be making any videos about the whyte bikes and 2 what's your opinion on them.
#AskGMBNTech Hi doddy i have a question of tire clearance i have 10mm clearance both sides on my frame im planning to change my tires to 2.40 does it fit my frame and i have 28mm rims thanks