Mountain Bike Tyre Pressures - Everything You Need To Know
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- Опубліковано 3 жов 2024
- What tire pressures is a question we often get asked about and can seem daunting and confusing. But Scott, Blake and Neil are here to give a full comprehensive guide to setting your tyre pressures and explaining the different tires available.
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In this video we run through the different types of tyres and compounds for each MTB discipline, as well as the pressures to run. Different disciplines require vastly different tyre types and pressures. But after watching this video you'll be an expert!
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Excellent video!
I'm a heavy rider (125kg) and I was always wondering about tire pressure for my MTB bike, and the info about the TPI is priceless!
Thank you.
love the way you have added all the presentaters in put on tires
‘If you need to add more air just pump up your tires.’
Now that is some very crucial technical advice! 🤣
"Most people who died are dead"
the old couple in the background of the footage of blake manualing made my day
I agree.
I had to rewind to make sure I heard correctly when he said tubes were fine... seems like everyone's pushing tubeless these days. Good to see someone with a different opinion.
nice guide mentioning ur ride style, and weight in relative to your tire pressure of preference. thanks so much!
how to setup your front shock in a hardtail would be an awesome video
I race XC and run 20 in the rear and 17 in the front.... tubeless of course... This video was completely alien to me with all these high pressures!
i'm more of trail rider and run 21/24 and was thinking the same thing! A proper tubeless rim (i use stans) provides plenty of tyre support, i weigh about 82kg and have no issues running these pressures
I believe this video is also completely inaccurate what is the ideal pressure for nowadays tubeless rims and tires for CROSS COUNTRY. I would say anything over 20 psi will give you very hard tire that will bounce over roots , rocks and slow you down considerably.
I run in my 29er race bike about 17 PSI in 2.2 tires on 27.5 mid plus bike about 14 psi .
One thing to keep in mind you should not be hitting rim. My suggestion would be (on proper tubeless build) ... start with 20 psi and most likely you will be able to go down. When experimenting with pressure you need quality pressure gauge - say 30 psi pressure gauge (full scale /max pressure this gauge will measure is 30 psi). This will give you accurate measurement. Using pump gauges.. that is another point where they are completely off here, they simply do not show correct reading... they may be consistent in showing incorrect reading... so if you "map" you pressure on Pump to correct pressure you can do it that way and know how much you putting in.. but much simpler is to buy $12 low psi gauge
Should be proportional to your weight. A 300lb dude is going to compress the same spec tire more than a 100lb person. The relative “hardness” of the tire would be much higher for the 100lb person. This is the same concept as suspension and fork setup. Different weight, different psi.
I weigh 200 lbs. I still race XC and I still run 17/22 Goahead. :D
Got kenda k-rad, which is a dirt/street tire. It clearly states on it: 30-80 psi. Running it at 40+ psi, using it for commuting, mostly asphalt, a little bit of dirt sometimes. If lower than recommened 30 psi - it's just not rolling, uneffective. You especially feel it on climbs. So, TMM, take into account recommended pressure range printed on your concreet tire, it's there for a reason.
I have 29x2.4 Continental xKings 38psi front and rear and this is perfect for everything. No punctures very fast over any surface with great grip and i even use them with tubes :) epic tires
For those of you asking what gauge they're using, it's a Topeak Smartgauge D2.
After getting one you'll realize how inaccurate the gauges on most pumps are.
I weigh 180 lbs. (close to 82kg) and I just started experimenting with PSI. I am not going tubeless. I put some brand new tubes in my tire that allows up to 60 psi, and pumped the rear tire up to 40 psi. The ride was the smoothest and the fastest I've ever had, but after about 2 weeks, I hit something hard that made my bike jump. I was about 5 blocks from home and my bike seemed fine. I woke up the next day, and my rear tube was completely flat. It would not hold air at all. After removing the tube, I noticed the punctures were on the inside, near the rims. I checked the tires for any thorns/glass and did not find any. My rim tape also seems fine, it's not worn out or crooked as far as I can tell.
I put another new tube in and started pumping it up to 40 psi again. It made a pop like sound at about 35 psi that startled me, but I was able to keep pumping and after a couple hours it did not lose any air. I rode home from work later that night, and the ride home seemed flawless. After waking up the next day and getting ready to go to work, my tire was completely flat again. This time, it only lasted one day. I took the tube out, and the puncture was also on the inside, but in a completely different spot, straight across from the valve, when the first puncture was a few inches away from the valve. I checked the tape around the rim, and I still can't find any damage or spokes poking through.
Could too much PSI for my weight be causing my tubes to puncture quicker? I've been riding home for 4 years + and never had this problem. I think my pressure has been way too low in the past, as everything such as wind and uphill terrain has been a pain for me.
I tried patching the tubes, but the holes must be too large so I replaced the tube yet again. I pumped the tire up to 30psi right now and I'm going to leave it over night. I hope the tire isn't flat when I wake up and if it isn't, I hope it doesn't go flat the next time I ride it.
Did that fix the problem?
Thanks, great to see what pressures you are running on different setups. Qn, would you go higher or lower pressures if you are running a 29er?
can you please do a pro bike check on scotty's downhill bike? the rear suspension looks so complex...
Yanay H it's the same as brendan faircloughs and they did a bike check for it.
it actually won't be the same as brendan faircloughs, he has a custom linkage for his gambler where as i imagine scotty will have the standard linkage that the gambler comes with so they will actually be slightly different
It's actually a single pivot! :P Scott has the other linkage for their preferred progression.
SG - MTB is correct on this one, there is no pivot along the chainstay so it would behave like a single pivot. The linkage are all there for packaging keeping everything low for a longer stroke and keeping forces pointed towards the stronger BB junction instead of bulking up the downtube.
Yanay H they did one on Marc's downhill bike which is the same bike
I like that you have multiple people telling what they do & go for, it makes it seem more truthful almost 😅
Run quite high pressure for moving between trails on asphalt
A video all about tire pressure and no mention of how overall tire volume affects things?
Can you add the pressure in bar on you graphics next time please? It's a good video but I kept stopping it to do the conversion to understand it. Cheers
21st century, catch up ;)
@@userwatttt the comment was 3 years ago.... dont think hes gonna look at this lmao
Who uses bar anymore or stone lol
awesome insight! can't fake experience! thank you for helping me out
Test out putting helium in the tires to save weight.
We're afraid it doesn't work :( The helium leaks out!
Fill the frame instead?
You could use nitrogen but I don't think you'd feel any difference, they do it in motor racing because it doesn't expand as much at high temperatures. If you've got more more than sense though 👍
@@maxbailey2688 you already get like 90% nitrogen with regular pump air. Word in the street is that just a $ maker.
@@bewimotos yeah, you might as well clean your ears to save weight but if it's what you want to do
I ride an enduro bike, 26" wheels with tubes. My style of riding is enduro (mostly technical downhills but I also climb) and downhill. My weight is 80 kg. What tyre pressure would you suggest me? Thank you very much
Please can you talk about set pressure by the body weight!!!
Tire pressure is all about the volume of your tire and rim combination. On my enduro bike with 2.5in Minion DHF and 38mm internal width rims, I run 20psi front. On my trail bike with 2.3in HRII and 25mm internal width rims, I run 24psi front. I find these pressures work great for me and I rarely have any problems with flats. There are too many variables to claim one solution for each type of riding. I could probably go with a little higher pressure on mine, but I'm not competing in the EWS.
Neil!! no mention of Fatbike tyres And pressures!!!
Jon Cobb 10-15 psi
Ben - I run 5 on the back and 6 on the front...
I'd be curious on Plus tire pressures as well. I have 27.5x3" tires and run 16f/18r for mixed riding, but 10f/12r right now for winter snow riding. I'll probly be up around 22f/24r this summer, but it's all trial and error
Jon Cobb run 400 psi back and front....the tires should explode
Jon Cobb Right? No word on air volume and how it affects the pressure range...
Trek Fuel Ex trail bike with tubeless: 22 back and 19 or 20 front. If very rocky go up 10%. Great grip and no rim damage!
I`m pretty sure you mean fewer threads per inch for a tougher tyre? Fast flexible folding tyres tend to be high tpi which is great for speed and comfort but not so much for durability. Lower TPI tyres have fewer threads as the threads are thicker. Just to avoid confusion.
when I got my bike the guy in the shop said 40psi but felt I was pinging off of everything, after a few rides I found playing around in the mid 20's with about 10% more in the rear than front felt best for me.........now I just go by feel, if it gets too squishy I'll give it some air
Always run rear super hard for less rolling resistance and no rimpacts. But you get less traction and connecting feel on the trail. Trying Vitoria Tire Inserts at the moment - so far so good. Always run front soft but, trust me, don’t ‘burp‘ your front tire. The ground hits you in the face before you hear the “PPFFFISHH!!!”
U should get ten different types of tyres , ride the same track over and over with the different tyres and see the major differences. And keep up the good work and it would be really cool if you could if meet up Seth from Seths Bikes Hacks
people from these channels should understand that most people dont use tubeless and other expensive hardware
Tire pressure changes the spring rate on front forks and rear shock
I ride MTBs mainly on road and easy trails, waterways. Run approx 50 psi and I really move and roll fast. Watch soft chunky on moist tarmac when cornering esp if you have been throwing bike around for while on dry
lol when you go to a local bike shop in most areas, there is a massive range of like four tires ; probably three of them being specialized or Bontrager. They are one of the things where it's much better to use a site like Jenson IMO.
I run 35-40 because I need to ride about 7 miles to trails and 7 back and I don't want any rolling resistance
Bring a mini pump
@@connorhalpin2305
Good idea.
I'd love some more info on Fat, Plus and Cyclocross pressures. Plus how to determine the best pressure for each rider.
I’m replacing my muddy fox 24 inch at Christmas for an Islabikes creig (I’m ten) on that Front: Maxxis ardent 26” at 23 psi back: Maxxis ikon 26” at 26 psi. I’m starting to race Xc in Scotland where I live
Cool! That is a serious bike. My daughter was ten last week and I got her a rigid Ridgeback 24 with upgraded tyres just to get her onto some light trails. Hope you enjoy your Creig.
before I ask what tyre pressure but forgot to tell you the bike. i'm riding a specialised camber 29er 2.3" tyres, I usually set them both around 40psi
Thanks for info, been trying to get ideas for my new tubeless tires. Running 30 f & 32 r. I see no difference going tubeless for my trail riding so far
Will be nice to get also a mention of the new 27.5+ and 29+ wird tires, that use less pressure.
My wife runs on an Ibis Mojo 3 (with 27.5+ tires) using ~15-20 psi!
Continental xking folding tl ess 26x2.4 I run at 18 psi front/rear
I like to run very hard tyre pressures, 45 to 60 psi but each to there own
Heads Tails // so I'm not the only one (i prefer to ride high pressure because you feel more the bike and the terrain)
Me too. I ride around 40 psi with Maxxis tires and 45 psi with studded Gazza Extremes.
For me it's more like 55/60 psi (on enduro bike)
I like the jumpiness of higher pressures when going fast down rocky trails
Definitely to each their own, just a word of warning though, many mountain bike tires aren't rated for more than 50 psi, exceeding that could lead to blowing the tire off the rim.
Hey very good info for folk there but I do feel that you may want to include fat mountain bikes too because many around are having a full squish and a fattie both and it's def good info to add. Keep up the great vids!
I’ve been pumping my tyres up to the max it states on the sidewall ! 😂
Same here lol
Oh no
@@exist2758 What do you mean oh no - just ask Sam Pilgrim ;) He might have some good air pressure tips for suspension too :D
Haha, it must be quite bumpy ride if you hit any potholes or bumps.
I have never measured the pressure, i just pump enough air so the tire doesn't flatten too much under my weight (100kg)
My sidewall says 70 PSI, but my rims say 40 is the max on tubeless tire with the width I have. I'm running right about 38
Great video folks...Thank You for the info.
Tyres are designed to run at certain pressures, lower pressure =fatter foot print, higher pressure= higher roll speed. Ride out to the trail on high pressures, drop from 55psi to 35 psi, ride trails, pump up, ride home.
Are you running tubeless to get the low pressure ?if you use tubes what should the air pressure be?
I ride a hard tail jump bike, and often ride trails and downhill, but also use it to ride to the trails. What tyres should i buy?
Sounds like your riding a lot of distance just maybe get a Kevlar tyres for the endurance and there fine for dirt jumper at like 2.2 or 2.35
i ride best with 21 psi front and rear. its also quite comfortable and grips very good uphill when its raining
Front Tire is a rocket ron 2.25 and rear is a Continental mountain king 2.2. no snakebite or some kind of flat tire in seven years. terrain is forrest and some rocky paths.
My tyre pressure ranges from around 25 psi when I'm riding on a beach to 80 psi when riding urban. I always run tubes so I can swap tyres quickly and easily before a ride.
those topeak pressure gauges are the mutts nuts aren't they , got one for xmas and love it , so easy to use and bang on accurate too :)
I can't believe how high their psi is. I normally do 17-20 psi front and 24-26 psi rear. If you run too much psi in either tire the ride will feel horribly stiff on singletrack, doesn't even matter what kind of suspension the bike has. A tire with high psi literally ruins the function of suspension on the bike. Not to mention the front tire can bounce right off the trail if it hits an obstacle wrong.
Rim width also makes a difference.
Still a confusing subject as I get told by quite experienced riders to run lower pressures in my tubeless so it's better grip for climbing . On the Stans Sealant site using their formula for my riding weight 70kg , it is 21psi front 24 psi back ? Here in Townsville most of the track have rocks sometimes very dusty on the way up.
In my full suspension bike I always was using 32-33 psi in rear wheel 30 psi in front wheel ,
I am not downhill rider by the way and my weigh is 92kg
What's perfect for 70kg weigh
why is your first name eyetalian and your last name german?
I’m wanting to become a machanic and I hope this helps I want to be a michanic for my brother for his racing
im 125 pounds, and i ride enduro, 19psi up front and 23psi rear.
both minions 2.3 exo
I run 16
Rock hard & lets roll baby!
Can you do a segment on rolling down steep rocks that are at least 2ft to 10ft. Trying to avoid Otb. I lean back and have front tire rebound set pretty quick. Just want to see you guys do it and talk about pace and body position.
Here you go! ua-cam.com/video/ZmYzLDkeRh8/v-deo.html
Global Mountain Bike Network thanks I've watched that one (Great video by the way ), the rocks that are giving me the problems are the ones that are vert or near vert and 2-3' where your tire doesn't have much transition if any. if I have speed I will jump them but the ones where there isn't room to get the bike lifted, the only option is to basically drop the tire straight down and hope you make it.
When you say "a heavier rider" how much weight are you talking about? I'm 96kg, strong and an aggressive rider, I usually run 28 in the front and 30 in the back but that's what the guy at the shop recommended for me. Not tubeless yet and running [F] Schwalbe Nobby Nic 27.5x2.25" Performance Wire [R] Schwalbe Nobby Nic 27.5x2.25" Performance Wire also been thinking of going up to a 2.5 maybe 2.6, any advice?
My fatbike is 26*4. Max psi quoted as 30 psi. My question is "What is the max psi to be maintained on my fatbike if I go for a century ride on smooth tarmac highway ?" I have seen few videos which states that max psi will make the bike bumpy and max speed cannot be attained.
Great video guys good info
I'm 65.8 kg on an AM hardtail. I just switched to tubeless, Maxxis Minion DHF and DHR II. I run 20 PSI front and 22 rear and have never had a pinch flat or burped the tires. I don't really notice the tires squirming around, but should I try different pressures?
Hey guys, i love your videos, i would like to ask you for help on tires, i find myself constantly tearing my tires off ripping them from the sides, 5 tires in 2 months riding on my XC bike on really rocky terrain, i'm actually riding down hills with no path or trails whatsoever just making it as i go, what can i do to avoid this, it's getting pretty expensive and i can't seem to find a solution, are there tires with side protectors or something like that? greetings from chile!
There are tonnes of options for tires with sidewall protection! They aren't really XC tires though (they tend to be lighter weight and lack the protection) so look into more of a trail bike tire. they'll be heavier but more durable for your style of riding!
Hi GMBN, Yesterday i was pumping my bikes wheels and i didn't check the psi and today bad thing happened when i did go for the turn i lost control and crashed i was surprised what happened.
Have you ever looked at or tested the green tyres? Essentially solid tyres no punctures possible ever. Ive looked at thier web site but never been brave enough.
I go crazy high sometimes like 70-75 psi but usually run around 40. Depends on what you're doing and I'm also a pretty big guy. The other day I was down around 20 because I was riding on snow and it worked way better than the high pressures.
I've always been running my tires at 2.5bar/35psi, but recently, I discovered that my touring bike has tires specified at 3.5bar minimum!
so nice...
Why do they recommend higher pressures for rocky terrain on mtn bikes? That’s the opposite of powered vehicle off road where the rule of thumb is to air out to maximize traction.
maxxis exo casing is pretty lite for the protection it offers
Silly question, the 2.5 Maxxis tires I'm running say min pressure 30psi. Is that more of a recommendation to prevent burping?
I wonder if old Blake still agrees with young Blake in this? Haha tubeless he said sees no benefits to from tubes, I totally agree I've even went back to tubes but would be interesting to revisit this in a new updated video Neil?
Please do a video on the most important things you need to do after you ride your bike and wash it #askgmbm
If I'm going to be riding my mountain bike as it were a street bicycle, then would a different tire pressure be more logical? Such as ... ?
You cannot do spesific pressures with pumps sold in stores. Scale on pumps are very bad and pointer is very thick so impossible to inflate exactly like 29psi.
Higher TPI usually denotes a lighter tire though...
Great video 👍👍👍
I use 40 inth front and 45 in the rear and have 27.5s 2.35
1.6 post and 1.2 front in all terrain
Everyone forgets about narrow rims needing more pressure to not flex horribly and loosing grip when cornering on hard surfaces....
where is the trail/enduro? both DH and XC need big pressures for racing but what about the majority?
Good details and advice. :)
What are some good cheap alternatives for 5.10's? I really can't afford to drop 100 on shoes...
Thanks.
Just look for some used ones, or last years models on Amazon. There really isn't a cheaper alternative to 5.10 specific flat shoes or any of their comparables. Sometimes Shimano DX shoes can be found pretty affordably.
Jona de Graaf some skateboarding shoes give you lots of grip on the pedals
They definitely get the job done, but sticky 5.10s are much much better.
Thanks
I've heard Vans are good. Just look for shoes that are flat and have a pattern that allow for the pins on your pedals to grip.
Folders for sure no matter what type of riding. Tubeless or not I always carry a spare inner tube.
The critical flaw in this video is not addressing the body weight VS tire pressure difference. We watch these videos of dudes who mountain bike with tire pressures in the low to high 20s yet they have the body mass of an average high school boy. There are various body weights out there and even for myself, I weigh 280lbs at the moment. If I ran anything under 50psi, my tire and rim would absolutely break doing through even mild trails.
Just making a video saying "I run 25psi, you should too" is WAY too unprofessional for a varied audience that may not understand the difference between being 150lbs on a bike and 200lbs on a bike. Yet they make a MASSIVE difference. This needs to be addressed.
Been running roughly 40 lbs in whatever bike no matter the trail for nearly 25 years and rarley get a flat. Always top 10 in local STRAVA standings and often top 5. While that doesn't really mean a lot it does mean I am pushing it. Ride your bikes.
i weight 46 kgs and ride a hardtail,what pressure do u recomend?
Scotty mentions his weight in relation to tyre pressure, but doesn't say if you should increase or decrease the pressure if you're lighter or heavier.
I'm a bit of a fatty. Should I run a higher pressure? Cheers!
Yes, higher weight = higher pressure
Weight and tyre width are the biggest factors that determine appropriate pressure
Could you please tell me where I can find the digital pressure gauge mentioned in the video?
www.topeak.com/global/en/products/pumps/351-smartgauge_d2
Got mine on Amazon
We ride primarily cross-country with a lot of abrasive sharp rock gardens and thick growth of acacia but totally dry trails. i often find sidewall of the rear tire torn. now i have switched to Schwalbe Hans dampf for rear and Maxxis crossmark / ikon on the front. the wheels are tubeless and i weigh 75 kg. Currently i ride with 28-30 psi. What do you think is a good range?
Cool video,now tyre pressure guages vary so much,how accurate are shock pump guages and floor pump guages,also those digital guages aren't cheap,maybe you could cover this too.
I am currently running 23psi on my enduro bike front and back,it feels quite hard,but this is going by my pump guage,who knows how far out that is.
thats quite a good point, even with pressure guages there is tolerances etc, my two track pumps seem to under read but thats fine as I set up the tyres to the minimum by the track pump, before tyre squirm started to annoy. which for myself for both my weight and style is 30psi ish!
what are the recommendations for 27.5+? I am 185lb with my pack and am running 14-16 rear and 13-15 front depending on conditions.
Thanks very helpfull.
So I'm a beginner, and I'm trying to jump a long/tall step made out of concrete on a flat surface. Not too sure what they are called. but I can clear off the front tire, but I can't seem to clear off the back tire. My tire popped from an aggressive hit to the back tire. I recently learned to clear of both tires, but this time I didn't time it right. And I ended up getting a flat. Do I need to have the a medium pressure on the tires rather than full when jumping?
Being a "heavyweight" 220 kilos (and a less than great rider) I always run a bit more pressure than I should. Always worried about a blowout.
220 kg?? What kind of giant are you?? 😮
how about tyre pressure for enduro-ing? more leaning to XC or DH?
I’m 106kg and I’m riding a Stumpjumper Comp Carbon 29 with 2.6” tires. I was using the tires that came with the bike for the last 1,300km which had the weaker “Grid” casing. I had to run 26psi in the front and 32 in the rear otherwise the tires would fold under hard cornering or flat landings. I just upgraded to a Butcher front and Eliminator rear with the tougher Black Diamond casing and I’m hoping I can run lower pressures. Do you think a tougher casing will allow me to drop my pressures by much, if so, how much? I have them set at 22.5 front and 27.5 rear as a starting point but I’m yet to test them (maybe tomorrow after work). Any advice would be appreciated.
great vid!
What is a good tyre pressure for pump tracks? #askgmbn
in the snow i run 11psi in the front and 14psi in the back on my trail bike