Should we all use the same tire pressure?
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- Опубліковано 13 бер 2019
- #tirepressure #mountainbiketech #keeppedalling
Modern mountain bikes and their tubeless tires can ride amazing- as long as the proper tire pressure is used! This is an often overlooked, but HIGHLY important bit of set up. When I went to my first EWS race back in 2013 I noticed several of the really, really fast French guys would check their tire pressure all the time. I rarely put much thought into it beyond “is it kinda soft but not too soft?” At that level of racing, every detail matters. Noticing this extra bit of professionalism, and the really good finishes that accompanied this, I began to turn into a bit of a tire pressure snob. I went and purchased my own Topeak Smart Gauge, and it’s the same one I use to this day!
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Tubeless tire set up is pretty easy now, but do be sure you have a proper tubeless compatible (UST compliant) tire and rim. Trying to convert non-tubeless parts is not safe, and having a tire unexpectedly blow off a rim is NO FUN, and can be very dangerous.
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![What is the Best Tire Pressure? [TESTED]](/img/n.gif)
True story: I once went to change my wife's tire because I thought it was flat. Then she said "that's plenty of air!" Would you argue with her?
Uh oh! Ptsd flashback…. “Honey, do you think my … looks big in these trousers…”
Jokes aside. Only if I could foresee a danger in regards to the trails she is riding. Otherwise, experience is the best teacher.
I wouldn't argue with your wife nor mine. That's a losing battle from the get-go. ;-)
Rule number one, never argue with your wife; Rule number two... don't forget Rule number one.
@@slapthatplank There you go.
One of the very best riders and reviewers on UA-cam
Thanks Dave!
Really looking forward to hear what you have to say about the cush core.
Just got mine installed and haven’t been able to ride them yet with snow still on the ground but I’m excited to see how they feel
I'm excited to try it too!
Nice!
Great vid thanks for sharing! Cant wait for the cush kore review as I'm pondering to try it out myself
CushCore hands down has taken my riding to another level, the added traction of lower PSI and the added dampening keeps my bike more glued than ever. And for what it’s worth I’ve been ramping sketchy jumps since the mid 90’s 🤘🏽
Love the guidance figuring out tire pressure. I'm 240lbs guy and I've always ran my tube tire pressure on the rear around 50lbs.
Michael, I'm about same as you on the scale after adding gear closer to 250. First thing is I totally recommend tubeless, it's been so long since I road tubes I can't recommend pressures on that, but would say 50 still seems high. The process that JKW talked about, riding the same bit of trail while letting out air a little at a time to figure out what feels good would be your best bet. You probably should have a back up tube because when you get to that too low of pressure setting you will most likely pinch flat your tube. For me on my tubeless setup, riding on the rocky Texas trails, depending on the trail I'm between 28 and 30 psi in the rear. Good luck.
Wow! I cannot believe you're not running cushcore, that's nuts! Get it set up real soon it's super easy and real fast I'll be looking forward to seeing it
Awesome info! Outfitting my vitus HT
It makes sense that you can run lower PSI on a 29er because assuming the same width you have a larger contact patch. More contact means more support since we're talking about pounds per inch of area. Thanks for a great video Jeff!
Man I loved those old Mythos XC tires. I ran those on my old OCLV hardtail and my Titus Racer X. Ah...the good old days!
Just added Cushcores to my Ripmo (Ibis oem Maxxis 2.5 Exo casings). Only one ride so far. But I think they complicate the picture somewhat, because they reduce the likelihood of burping overall--you can go looow and still maintain a good bead. Really looking forward to your impressions.
Also interested in any insights on tire pressure and cornering traction. Lots of loose on hard where I ride, and the quest for traction is constant (not forgetting that the quest for better riding skills trumps all).
Anyway, thanks for another good vid. Looking forward to a ride in your neighborhood in a couple weeks!
Good info!
Thanks Rob!
So happy to see a OZ Trails hat in the background! NWA represent!
Thanks man!
CushCore has been the best thing next to suspension, that I’ve upgraded on my bike. I have a the install and removal down, but it’s still a pain in the butt. Haven’t had a flat yet and gives me confidence to ride packless locally and some out of town places that aren’t too far. Gives the bike a nice feel through chunky bits too. Can’t wait to hear your feedback!
Nice feedback Nick, I'm excited to try it too!
+1 for Cush Core. I rode the lifts all last summer at Big Sky, MT (place is steep, very rocky) WTB Vigilante 2.3", Stan's sealant with Cush Core front and rear and had not. a. single. flat. For the first install, make sure they're warm, it makes the install much easier. I put mine in the oven while it was warming up, maybe 100F for a few minutes.
WOW! That's quite a testimonial to cush core. Interesting tip on baking them!
@@JeffKendallWeed When they're cold they're a bit of a PITA, I just intercepted my oven's pre-heat when it said it was 100, turned it off, threw them in the top rack (away from the heating element in the bottom), and let them get nice and warm. They were mucho more malleable after that.
I've played around A LOT with the 2.6 DHF/2.5 Aggressor on my Yeti SB5.5 and 18/20 seems to be doing really well for where I live and ride in Phoenix. I weigh 150# kitted up. No burps or punctures yet :-)
I use to run 20/24 with 27.5 2.5/2.4wt maxxis on carbon nox teocallis and when I went to bakers creek TN I was having issues and switched to 24/28 and it was worlds different so now I run in the middle on my own trails and actually found it better than the original 20/24 i use to run.
The low pressure feels good at first, but smacking rims is no bueno!
@@JeffKendallWeed Carbon rims too ouchies! Haha
Thanks so much
Cheers Peter!
Jeff, your killing it bro! Keep up the good work! Love these vids and the effort your putting into them. Cheers!
Thank you!
Very helpful video! I use percentage of my riding weight. 20% for 26in,15% for 275, and 10% for 29er and minor adjustment depending on tire volume.
Woa, crazy formulas!
Would love to know how you adjust your air pressure due to dirt conditions? Wet vs dry. Thanks for all that you do!
Hey man you are a biking inspiration, and I thoroughly enjoy your videos! Cush Core rocks and is game changing in my humbled opinion. Run them on my Pivot Firebird 29er and love it! Keep up the great work and send a message when in Colorado next time haha! Peace.
Thanks Ryan!
I want the next tire gauge I get to read decimals. 2.6 to 3.0 tires can often take more than one pump to go from one PSI to the next. Oddly a pump or two can make a difference. At 17 PSI, I'm pulling the tire off of the rim in turns. At 19, I'm losing that sweet plus traction. 18, 18+1 pump, and 18+2 pumps all have slightly different feels. With normal tires up to 2.4, I haven't noticed this, (but I'm usually 25-32 PSI depending on the tire/location.)
I've also noticed that some tires that other folks love, I will hate, (DHF I'm looking at you,) but I can't run the tire at the pressure that the fans of that tire run. At 260+ lbs, I'm running different tires and pressures than a 150+ kid.
The Topeak sometimes reads 1/2 psi increments but it is not consistent. The acugauge is better for more precise measurement, and I believe they have a
I like this video.
'in my backpack'. did you hear that endurobros? yes, backpack.
I ziptie mine to my bike. Get at me bro!
Heck yes backpack! It's like back protection on 24/7!
love your energy bro. good stuff!!
Thanks chaser!
I exploded the tire of of a stand iron cross in a gravel race with 60psi in the rim and the rim was rated for 45. Road rash with gravel stuck in it sucks.
Great video. Pressure is so important! 👍🤙
Thanks man!
Great video like always Jeff 👌🏻
Thanks Tomi!
you need more sponsors ;P
Sup Jeff! Been running CushCore for couple months in my Marys and I'll never go back. The damping effect was an unexpected bonus on top of the rim protection and vibration reduction. Love it. Looking forward to your experience with em. Cheers.
Thanks for the feedback, I'm pumped to try them!
how much do you vary on a 2.4" between say a summer CD jump sesh and a fall 542 lap? at just north of 200 I can get away with 24/26 on natural terrain but I'm more like 35/40 for high-G berms and lips and default to 26/30 for mixed conditions.
Hey Jeff, I'm really looking forward to seeing your feedback on the cushcore inserts. I have been running them for about a year on my Pivot Mach 6 and I think I'll take them out on my next tire change. Not that I've had any problems with them but they do add a little weight and much worse they make tire changes near impossible even after watching the instructional video. I'm actually a professional motorcycle mechanic. I'm good with tools and not a hack but I don't think I can suffer another tire change with cushcore inserts.
Mine got a lot easier the 2nd time around, I think they had stretched out a bit, did both wheels no tools no drama. Biggest difference maker for me was making sure everything was warm. I put both wheels in my mechanical room, next to my furnace and hot water heater. Once I made sure the tire bead was in the dish of the rim and used a bit of soapy water it was hardly any harder than a standard tubeless tire install.
Interesting...I would think you'd be running even lower pressures with larger volume 29er tires and your lower weight. I'm about 190 lbs and run 18 PSI up front and 21 PSI in the rear on a 29er hardtail with 25mm inner width rims and Maxxis Forekaster 2.35" EXO/TR Tires. Mostly XC riding, small jumps, roots, logovers, switchbacks, and punchy climbs and descents, but I find this to be the best combo of good rolling, grip, pump, and comfort without being bouncy or squirm under hard cornering. I like to get down to the 0.5 PSI level of detail and that's what I settled on for those tires. I also always adjust before a ride after I've let the bike sit outside out of the sun for 15 minutes or so, so the pressure is set to the outside temperature. I think this gets me the most consistent results
Hey Damien, when I was rocking the 29 x 2.6 tires, they were the thinner Schwalbe Snake Skin tires, so they didn't have as much sidewall stiffness as say a WTB Tough or Maxxis Double Down. Also, I'm a frequent jumper, which changes the pressure requirements pretty quick. THanks for the note!
I'm running wtb ranger 2.8s hard casing on my hardtail. I weigh about 155 pounds riding loam and hardpack in the uk. Currently 15 psi front 18 psi rear. This seems to line up with you recoomendations?
Spotted in OZ trails hat in the background.👍
Yep!!! Everyone has been noticing that lately- eagle eye Joe!!!
i just keep em at 28-30psi front and 30psi rear. dh casing helps. last time i flatted was due to tire getting slashed by sharp rocks, ruined the tire lol
Great stuff. I just went from 2.35 hans dampf front and back on my diamondback mission2 to 2.6 magic mary in the front and 2.6 nobby nic in the rear. Both with cushcore. I was just about to start testing tire pressures. I would love to see what you think about that setup.
Sounds awesome, what ID-width rims do you have? I'm running 2.6 tyres and 30 ID rims
@@th_js mine are stans Flow mk3 with 29mm internal width.
@@MTBThrumyeyez 29mm is perfectly OK for 2.6!
Hey man, pressure will depend on your weight, your riding style, and your terrain. I can't yet comment on how cush core affects final pressure.
@@JeffKendallWeed yeah I can't wait to hear your opinion and testing. Great vids keep them coming.
just ripped my rear tire on a particular gnarly bit of trail in the nuts
Ooops! Was the trail "squirly"?
@@JeffKendallWeed yes a particularly squirly roll into switchback
I need a guess of all of you guys:
What pressure would so suggest for a 240lbs/110kg rider on Minion DHF/DHRII 27.5x2.6wt EXO combo tubeless on 30mm rims riding rocky/rooty forest trails and alpine?
Give me your guess or experience for the front and/or back!
I'm currently on 20psi front and 25psi back, but still figuring stuff out. Came from 2.8" Rekon+ with 1mm heavy ass tubes. Ran them around 15psi, front even lower at times.
I am 240lbs before pack
DHF 2.5 DD @ 45lbs
DHRII 2.4 Exo @ 50lbs
Tubless on Reserve 27mm rims
I ride mostly super chucky rocks amd drops no more then 5ft. Seems to be okay for me could probably go down a couple lbs in front but the rear is really flattend out where it makes contact so I figured its good.
Just my 2c
where can I get that hat? please share the link. 5'10" 170 lbs, 2.4 tires @ 35 psi tubes, 25 psi tubeless. DH, I'm always on tube. I initially had tubeless on DH but one burped on a berm and it was scarweezy.
I use a pihole and it blocks your Jenson link. Do you have a code I can add at checkout to give you support?
you should also tell your 13 year old self to sell everything and buy Amazon stock..ha!
LOL but then it's not certain that I'd have stuck with bikes!
Mythos XC! I ran those but not at super high pressure.
Hi, have 27.5 x 2.80 tyre wich is the best psi?
Cushcore is the best thing I ever did to my bike.
A lotta folks say that! I'm curious about it, will try it soon!
Marin’s the perfect place for somewhere with advocacy work going on
I lived there for 2 years. I want to remain a positive presence online, so I'm not going to comment on the state of affairs in Marin county.
@@JeffKendallWeed You might want to look a few hours north at Redding. Those folks have been very busy up there.
How does the rider's weight play a role? I'm 5'10" and weigh 210lbs I have a 29er with 2.3 tires. I live in Michigan so we have a mixure of roots, rock gardens, and flow with jumps and high berms. Any suggestion would be great since I've only been riding for 2 yrs and still learning. Thanks
I find I'm almost always running higher pressure than the lighter folks.
Yeah, like NoBrakes said, you'll wanna run a little higher pressure. How much more? Well that depends on riding style. Id just notice how many rim strikes or burps you experience, then add more until you don't have those issues anymore.
Thanks man for the reply
Thanks, man for the reply.
“I’m going to go ahead and assume that everyone is running tubeless tires” OUCH! Shoosh!....... My bikes are listening….. there, there little 26”ers. There is nothing wrong with tubes, I will always love you….
ps: Dont't tell them I'm saving up for a new bike. ;-)
I'm still rocking a couple of 26" bikes, (but they are both tubeless.) #26aintdead
@@NoBrakes23 Good to see 26” bro. I might have to look at my tubeless options. I spent some time away from riding during the transition to 27.5/29 so I need to do a little catch up.
ua-cam.com/video/Jj0uBQ7j5c4/v-deo.html
this still cracks me up.
Hey Somebody, my Mojo Ti is 26" and tubeless! It can be done!
@@JeffKendallWeed Excellent. Thanks for that Jeff.
@@doozer009 I did my first tubeless conversion on my 26'r this year. 2.3 vigilante in the front and a 2.25 Trail Boss in the rear. Gorilla tape + Stan's valves + Stan's sealant. UH-MAY-ZING. I highly recommend it!
I'm still playing with pressures but I think I ,weighing 200-212 lbs geared up, like the baseline set up recommendation from Stan's: Rider's weight divided by 7 (-1 for the front and +2 for the rear). Which for me is F-27, R-30.
This has worked out well for me so far.
I have 27.5 wheels with tubeless and barbieri anaconda insert ( very cheap). 27.5 psi on both so it match wheel size ;0).
Cush core baby
Got it on my Ripmo currently!
@@JeffKendallWeed Redpoint and Gambler fully cushed. Dig your vids dude🤙
Step 1, trim left sideburn
God, the Bontrager Privateer Comp again. Sad, so sad that I sold it.
Find another!!! They are out there! Someone in town here in Bellingham has the same year/color/model, but it's a size medium or size large. Mine was a size small.
Cuando yo sea grande quiero ser como tu kendall ..✌🏻
I hope you will dabble in the world of fat biking.
Hahaha me too! One day!!!
Yep the Topeak gauge is great for checking tyre pressures & carry it with me in my pack, I’m riding 29er with 35mm id rims 2.5 wt front & 2.4 wt Maxxis exo tyres (shorty & dhr2) 28psi rear 27psi front & weight about 240 pounds 🍰🍰🍰😘
Woa, that's a lotta air! But you're also almost double my weight. Any folding over/burping issues?
Jeff Kendall-Weed no burping but I don’t ride as hard as you (if only I could tho😅) will try a bit lower pressure but just don’t want to dent my rim again cheers 👍
I run 29ers - I climb at 30PSI front and back, descend at 20 front and 25 rear. Works great! Currently on front DHF and High Roller II rear
hi Jeff, it's Jeff , I'd like your video's approach. I'm waiting you review the cushcore with tyre pressure set-up I just bought a set of Nukeproof ARD inserts for my wheelset, expecting to drop air pressure by 2-3psi on my 29er, using a 30mm internal width. keep the good job. Regards
i noticed that when reducing tire pressure i have to adjust the rebound to be a bit slower, say 1-2 clicks
did you fill the same ?
Im super early, nice vid
Yooo!
i spend 3000$ on my entire bike not the frame. lol
So you know better the next time it comes up: The name of the place in Utah is pronounced, "her-i-kin".
how bold of you to assume i have 5 grand for a bike
This is nonsense. Just pump that thing up, squeeze it and release air accordingly. Too much nerdology with the pressure numbers! 🤦🏽♂️
Unstable Ways
It is definitely NOT nonsense, once I nailed my tire pressure I was surprised by how much grip there was. I now even notice when the pressure is off by 1 psi! Not even kidding!
It's only nonsense if you don't mind your bike riding like crap or you don't have enough skill to notice the difference.
LOL . That's what I did for years as a kid! Haha!
Phil Rossetti
My point exactly! 🤘🏽🤓🤘🏽lol
Everything is subjective. If you like you’re bike setup a certain way then rock that ish!!
Ryan Hershkowitz
Forums must love you. 😂