Talking About Tire Pressure - Pinkbike Poll

Feb 9, 2018 at 11:03
by Mike Kazimer  
War of attrition. Mechanicals were common place as Richie Rude helps Lewis Buchanan fix a puncture at the bottom of stage 2.


The Pinkbike comments section is a constant source of entertainment, and a testament to the fact that there are a lot of witty mountain bikers out there with way, way too much time on their hands. But there's one trend I've noticed that still makes me scratch my head, and it's related to tire pressure. Look under any recent tire review and you'll find the usual thread of cringe-worthy puns, but then then there will also inevitably be a few comments that say, in various ways, “You only ran XX psi? You're an idiot – I run XX psi in my tires.”

There are so many factors that go into choosing the correct tire pressure – trail conditions, rider weight and riding style, tire casing, rim width – that it seems ridiculous to call someone out for using the “wrong” pressure.

Sure, if your buddy is running 40 psi and consequently pinballing all over the trail, it's worth mentioning to them that letting a few pounds of pressure out might help them stop bouncing into trees, but otherwise, there really isn't one pressure that's going to work for everyone.
Tire gauges
It's worth having a good tire pressure gauge in the toolbox.

I live in the Pacific Northwest, where the ground is usually relatively soft for much of the year, and slippery roots are the most common trail obstacles. For that reason, and because I only weigh 160 pounds, I typically run around 20-21 psi in the front and 22-23 psi in the rear for tubeless tires between 2.3” – 2.5”, although those numbers can vary if a tire has a particularly thick casing. I arrived at those numbers through plenty of experimentation, and, for me, they're the best balance of compliance and support. I don't want my tires squirming off the rim during hard cornering, but I also want them to deform enough to grip on all the slimy stuff. Experimentation is the name of the game with tires – a few psi here and there can make a noticeable difference, and if you really want to dork out, a digital tire gauge is a worthwhile investment.

Even though there's not one tire pressure to rule them all, I am curious about what pressures Pinkbike's readers are typically running, which was the inspiration behind this week's poll questions:


What pressure do you typically run in your front tire?

This is for a 2.3"-2.5" mountain bike tire.



What pressure do you typically run in your rear tire?

This is for a 2.3" - 2.5" mountain bike tire.



How do you measure tire pressure?



Do you run tubes, or go tubeless?




325 Comments

  • 429 5
 Pick a tire pressure and be a dick about it.
  • 56 3
 Thanks Richard, I’ll do what I want.
I want my 2.5 width in my maxxis, 60psi it is.
  • 13 0
 The airless tires mock at having to check pressures.
  • 24 1
 @macross87: 80 psi in my wet screams thank you very much
  • 104 1
 I use boost psi. suck it.
  • 7 2
 @Cleon: you don’t want a vacuum
  • 56 4
 @Cleon: Is it 148 or 28.99psi?
  • 15 0
 @jmartinbiking: what about screaming when wet?
  • 4 1
 Kaziimer - what different pressures do you run for 3c max terra vs 3c max grip minions ?
  • 6 3
 @Ron-C: 157 super-boost-my-ballsack

obvs
  • 42 3
 30psi in my minions, i don't need your opinions
  • 1 1
 get high and blow off
  • 15 31
flag WAKIdesigns (Feb 16, 2018 at 12:45) (Below Threshold)
 @Birmingnar hahahahahah
  • 12 1
 I run 21.5 psi in the rear because its boost - 1.482373 bar. Unfortunately, my front is non-boost, so I can only run 14.5 psi. Not sure why I keep rolling the bead off the front though.
  • 2 1
 @Cleon: Big Grin fooook, that's good! Big Grin
  • 3 0
 @T-Bot: Nobody asked you Kevin!!!
  • 4 0
 @Cleon: leave your ballsack out of this
  • 10 1
 @Ron-C: psi? who uses psi anyways? kPa is where it's at!
  • 8 3
 30 psi on my Minions, I don't care about your opinions : I'm Faster Than You
www.pinkbike.com/news/Im-Faster-Than-You-video-2013.html
  • 1 0
 It's 2018, we can all talk and write about pressures and dicks in the same sentence now!
  • 2 0
 @drivereight:
harder than an orange, softer than an apple
we're not tyres anymore yeah?
  • 10 8
 Need the "don't know, don't care" option. Inflate at some point, check by hand before ride, if everything works... who cares? I spend my time riding. Razz
  • 3 0
 @lebikeman:

Fook. Is that another new standard ????

????
  • 11 1
 @mtbikeaddict: and writing comments about how you don't care, and how you're always riding 24hrs a day unlike everybody else... other than that, you spend the rest of your time riding.
  • 4 12
flag mtbikeaddict (Feb 16, 2018 at 16:36) (Below Threshold)
 @Ron-C: I didn't say I ride 24/7; I was referring to riding time, not all time in general. Since I love biking, and don't often get to go to the bigger trail centers in the area, I use what time I have. I notice how you had time to reply with a comment, and you're a frequent commenter. But yeah, I know, rich guy in Bellevue with the high-end Mondraker thinks he's so much better, cause he's got a servant to check his tire pressure with a gold gauge. #Dentist, @Dentist. Razz JK. What would PB be without the comment section? Your comment was actually sort of funny. Except for the fact that it was a poll, they wanted answers, and my answer wasn't an option, so I commented. To each his own.
  • 2 0
 @Niro750: Na bru, I simply chose an entirely different unit of measurement and was a dick about it....

Isn't that how this section works?
  • 3 3
 In other words, I take the exact same approach @DutchmanPhotos said... but he's at +43. lol I didn't see his post before I commented, so don't bother calling me a copy-cat.
  • 2 2
 I run #Enough
  • 2 0
 Agreed! Anyone that brings their "A" game knows you're not going to replicate it by copying it. I know I can't do flips on a trampoline, researching someone who can won't change anything.
  • 1 0
 @adrennan: I can't believe that they didn't have that as an option on the poll almost everybody on here knows IFHT
  • 3 4
 psshhh please...I still run tubes in my tires. In fact I run 2 tubes in one wheel. Tube inception! First inner tube I pump it up to 100psi and the 2nd outer tube I pump that bish up to 120psi for the rear wheel. For the front wheel I just pump it up until my bikes starts to scream like the good girl she is
  • 2 0
 Fuck psi I'm all about the kpa!
  • 1 0
 Where is the flat-proof foam insert I bought at Walmart? We don't need no stinkin' air!
  • 1 0
 @adrennan: ahahahha that is what came in my mind also ! ahahahh
  • 172 8
 I always inflate to 28.99 psi, my pump is quite precise...
  • 101 1
 Seems fairly standard to me.
  • 11 30
flag taifi (Feb 16, 2018 at 12:21) (Below Threshold)
 That's quit low...i use 29.01 psi
  • 10 37
flag Leo48333 (Feb 16, 2018 at 12:24) (Below Threshold)
 Hahahahahaha!!!! Did you just make a sram DUB joke?!?! -_-
  • 42 1
 #30aintdead
  • 4 1
 I 100% support advancements in a firms product application (DUB) but this made me laugh! Thank you Smile
  • 4 0
 @N-60 Only 2 decimal places?
  • 12 0
 Whats up with these psi figures. I inflate my tyres in metric.
  • 2 1
 40 psi here i bet i boost higher and crash more than all of you
  • 11 0
 @Thema: The metric system is the tool of the devil! My car gets 40 rods to the hogshead and that's the way I likes it.

(Or your Euro units: 300 hectares on a single tank of kerosene)
  • 3 0
 at which themperature?
and hight above normal zero?
  • 113 4
 This poll really sets the Bar by which all other polls should be gauged.


Sorry @mikekazimer, I felt pressured to make that comment after your first paragraph...
  • 12 3
 Thanks for taking the pressure off the rest of us.
  • 11 4
 @JackSB: it seems nobody is pumped for a pun train this time
  • 10 0
 im left deflated by the lack of puns
  • 8 0
 @WAKIdesigns: Well, I've got some pretty inflated puns ready, they'll blow your mind. But sorry, can't leak anything just yet...
  • 6 1
 I think we are all just tired of it
  • 3 0
 @WAKIdesigns: I posted mine a bit below; I was airing on the side of caution... should've made it this post. One moment... Razz
  • 2 0
 AggsNasty:
29psi for life. #26psiisdead

Me:
InDUBitably you meant 28.99 psi...

There you go... this thread felt a little flat before. Sorry if I butchered the jokes. I'm sure someone will slaughter me and send me to purgatory for it. On the other hand, maybe I'll gwin out and people will like my jokes. At any rate, this is the max(xis). It's all downhill from here. Sorry, I started rambling. I'm really ardent about puns. I'll try to keep my future posts shorty.
  • 84 4
 What tire pressure people run means nothing without the weight of the rider. This poll mean nothing.
  • 23 1
 The bar was set low
  • 23 0
 Before transcending, one comes to the realization that nothing means anything. Going riding! Bye!
  • 10 0
 It's interesting to me as a heavier rider that my tire pressures are pretty much the same as everyone else is using
  • 3 0
 Yeah but more clicks...
  • 4 7
 @src248: then you need to up your ture pressure. A heavier guy should always be running more air.
  • 8 0
 @m33pm33p: If he's not pinch flatting or squirming through corners maybe he's just a better rider than his mates
  • 14 0
 On your hardest, biggest, gnarliest runs....whatever PSI keeps you from hitting the rim...That much psi Smile Different for all.
  • 8 1
 This and considering most people answered they use the gauge on their pump to check pressure. Pump gauges are crap.
  • 3 0
 @sideshowb: ...alternatively, maybe he's slower and doesn't require more psi Smile
  • 1 0
 @jdendy: Agreed. That's why I replaced the crappy gauge on my floor pump with an expensive industrial gauge. Works great and is all I use to set my tire pressure each ride.
  • 7 0
 @jdendy: ya but as long as the gauge is consistent it doesn’t really matter what it says... you find a pressure you like and you keep it there no matter what the PSI may be.
  • 3 0
 @src248: Maybe most people on pinkbike are fat.
  • 5 0
 @jdendy: track pumps may be inaccurate but a consistently wrong reading is just as good as a consistently right one. So long as you always use the same pump
  • 1 0
 Well, that is the beauty of it, innit. The whole article is about tire pressure alone tells you nothing. But pinkbikers love to tell about their tire pressure so now we can. Pointless polls matter too.

I'm pretty sure I usually set my tire pressure somewhere between 1 and 2 bar (according to the dial n the pump) but unfortunately the poll wants to know more accurate numbers.
  • 1 0
 I'm average weight and my poll choices were right in the middle of the curve on every choice.

I'd say with this much data coming in and if everyone's answering honestly before seeing what others have posted then it's quite a good indicator of what pressure on average work best for the average rider. It's not a co-incidence that the highest numbers of people are all choosing to run their tyres in a a quite narrow pressure window.

If you find your choices are right at the tails of the curves I think it's probably time to try a more normal (as indicated by the pole results) pressure, it's very rare the majority don't choose what's on average best.
  • 2 0
 Personally I will change tyre pressures quite dramatically depending on conditions. 10 psi in slidey mud. 20 in the dry. 30 for xc. All with tubes.
  • 4 0
 @StevieJB: I'm looking at the last bit of your comment and thinking about elections and referendums. Hmmm.
  • 2 0
 @Rhymer: i think you can remove "maybe" from your comment
  • 1 0
 @freerabbit: Are you Fat Shaming us? I feel triggered...I'ma call somebody and cry about you Razz
  • 1 0
 Also depends on riding style and surface, at a skate park i run em hard as I can. On lose stuff I let some air out. It all very precise!
  • 1 0
 Yeah I'm not the fastest/most aggressive rider by any means and I'm right at the high end of the popular pressures 27 front 30 rear (ish) for general riding so it's not that weird
  • 78 3
 How come there’s no “I run tubeless until I get a sidewall tear, then I run a tube in that tire until I find enough time to buy/patch a tire and convert to tubeless again. All the why wondering why I’m no worse a rider with tubes in?” Option
  • 6 3
 While. Arggghhh.
  • 38 4
 Because “...then run a tube in that tire until...” I immediately get a pinch flat.
  • 11 3
 I discovered that this summer. Really use to think tubeless handled way better and then found out when I used a tube to fix a flat it doesn't matter that much.
  • 8 2
 I thought the benefit of tubeless was to not flat... not that it makes you a better rider. Although I haven't had a flat with tubes in 7 months, so...
  • 24 0
 @huntstyle: Incoming flat in 3... 2... 1...
  • 4 1
 @MortifiedPenguin: maybe I'm just sensitive...but I notice the difference right away.
  • 7 1
 @Nathan6209: It's all in your head....Man
  • 4 1
 @huntstyle: Same here. Bike came with tubes. Figured I'd Keep them in until I got a flat, then I'd go tubeless. Still waiting. I changed the rear tire because the tread ran low and used the same inner tube. No flat problems with tubes here (Pac NW). Of course I'm not riding in sticker bush So Cal or hitting huge air, so maybe it is just my riding.
  • 2 0
 @CyclingThe425: tubes are all right if you have decent tyres I found. Those super gravity tyres are impossible to flat even pinging off the rim. I went tubeless for the weight savings more than anything.
  • 1 0
 Same boat. Put a big hole in my tire, enough so the sealant wouldn't hold. Put a tube in instead of buying a new tire. Been rolling fine ever since.
  • 2 0
 @huntstyle: lower pressure = more grip = better rider (well allows you to ride better in theory). Tubeless don't pinch flat if you drop the pressure ( Though you can still wreck your rims). Ergo tubeless makes you a better rider (as long as you are riding trails that might give you pinch flats). Wink
  • 5 0
 @catweasel: Better riders tend to side load their tyres a lot more through corners, that's why they run higher pressures than mediocre riders. It's not just about flats.
  • 2 0
 @jaame: My comment was supposed to be a bit tongue in cheek. Alot is going to depend on the type of riding and the rider. When they asked a few riders in that EWS video, Keegan and Greg (who I'm sure class as better riders) were running 23psi rear. no way I can run 23psi without pinch flatting tubes. Wynn and Richie were running 30psi, which for me (150lbs) is usually ok for pinch flats with a DH casing, not sure about Richie though!
  • 1 0
 @catweasel: Yes. I guess it just all depends.
  • 1 1
 Until now I've been running latex tubes. A bit more flexible than butyl so also less likely to puncture. I always thought it was more convenient than tubeless. When I flat I just take the tube out and put another in. When I've collected enough punctured tubes, I have a half hour mending session in the evening and all tubes are ready again.

That said, I plan to run tubeless on my next frame (which due to changing axle standards requires different hubs and as I came across a nice deal eventually just bought a wheelset that should ideally be run tubeless). But I'm planning to go with the whole Procore thing right away (so still with a tube in a way). I don't like the tire hitting the rim so I couldn't quite see how standard tubeless is going to allow me to run lower pressures anyway. But with Procore it seems like you can actually run proper low pressures without burping or getting snakebites. I do plan to use Peatys sealant though instead of standard Schwalbe (or Stans). I don't like to have this stuff dry out in my tire or clog up my valve. I'm not ready for the complications tubeless brings compared with tubes I've been running until now.
  • 66 7
 1. Pump tires.
2. Check pressure with your thumbs.
3. Feel good: Okay let's go! Feel bad: Let a little air off..
4. Shred till ya dead!

Just like back in the good old BMX days..!!
  • 45 20
 yeah apart from the fact that BMXers pump their tyres hard as fuk and on a MTB difference between 25psi and 30psi is not that obvious with your hands, but makes a lot of difference between puncturing and not puncturing. Meanwhile if you puncture a BMX tyre the subculture bullies you to be so cool that you have no other option but to be cool about it, so you just sit there and you are cool, looking like you could not care less cuz life's dope and you don't care about haters, so you just sit there with flat tyre while others are riding. Because if you are not cool about a flat tyre you may as well go fk yourself and hang out with mountain bikers.
  • 9 1
 @WAKIdesigns: #beingcoolaintdead
  • 25 3
 @WAKIdesigns: Your thumbs need calibrating if you can't feel the difference between 25 and 30 psi lol
  • 1 1
 Second
  • 9 0
 For me 30psi in my rear tire means I'm going to bottom it out in multiple places on my lunch ride. 32 psi means I'll only bottom out my tire if I purposely try to hit a rock stupid hard. My thumb isn't precise enough for that difference.
  • 6 0
 @panaphonic: are you guys talking about your cyclo cross bikes again?
  • 1 0
 @jaame: No, mtb. Again?
  • 1 0
 @WAKIdesigns: Harder than an orange, softer than an apple (;
  • 1 0
 @david-kooi: Anything more than a handful is a waste.
  • 26 1
 Rider weight; wheel size (26", 27.5", 29"); and type of bicycle (hardtail, long-travel fully, etc.) are all variables to an individual's pressure choice.
  • 8 0
 Rim internal width is also a critical factor, along with tyre type: Exo Vs DD Vs DH.
  • 5 0
 Agreed on both, but also terrain and conditions. If I ride somewhere high-speed with rocks I'll run more pressure. Slippery conditions (dusty or wet), less pressure. Out in the wilderness, more pressure.

And then there's sidewall strength.
  • 23 0
 haha "I don't know" on that last one
  • 16 0
 8 dentists dont know
  • 17 0
 One dog does not know, too. Please note that I do not know.
  • 2 0
 @IamTheDogEzra: that's an easy one. You go bite and chew your tyres, come back and comment the result.
  • 6 0
 @ismasan: Chew on my $80 Minnions? In this economic climate? I think not.
  • 1 0
 I selected it because I run a tube up front and tubeless rear....
  • 2 1
 @IamTheDogEzra: sorry you were way overcharged for your Minions.
  • 1 0
 @IamTheDogEzra: I'm disappointed that you offer no answers, as your opinion is literally the only one I will listen to in this highly subjective debate. I'm not even being sarcastic.
  • 1 0
 @IamTheDogEzra: Life's a bitch.
  • 5 0
 @metaam: So is my mom.
  • 13 0
 Alright, funny tire pressure story here involving a young noob we met on the local trail. One day two seasons ago our ride group created a hill and found a young 20 something rider slumped over his handle bars trying to catch his breath. He had come up from the other side. He was all kitted out in shiny new gear riding a brand new 5010. We stopped and asked him if he was ok. He looked up at us old guys 40 and 50 something’s and said in an exasperated incredulous voice
“How do you do this?!”
“Do what?” We asked him.
“Ride these bikes? Climb these hills?” He replied.
“How do you get over those rocks? I’m a collegiate racer. I’ve got a scholarship for bike racing! I can ride a bike! What is this?! How do not get bounced all over? This bike is supposed to have suspension?!”

The guy was clearly confused and angst ridden. We tried to explain to him that this is a completely different sport than road cycling. We started talking about suspension settings etc. trying to give him some pointers. Eventually the talk turned to tire pressure....
“How much pressure are you running in your tires?” My buddy asked.
“I read that these bikes need less tire pressure so I lowered them to 70 lbs. I had em pumped up to 90 but I didn’t want to go too low”
Wish I had a photo for the look on all our faces. We did explain to him that those pressures are dangerous and honestly didn’t know how the tires even stayed on the bike at those pressures. Told him to go down to around 25-27 lbs and he just couldn’t believe us. So we showed him. True story.
  • 1 0
 Awesome, thanks for sharing, and for helping the guy out! (must be good rims, whichever ones he had).
  • 3 0
 PB should run a column on the crazy things we see people do on the trail. We can add it to #FailsOfTheMonth
  • 1 0
 @ecologist: it was a top end CC Cruz. So yeah it had good stuff on it. Just funny as all hell. Wonder how we would all do on high end road bikes? We’d probably get dropped like hot potatos, and be terrified on the first high speed curve on bikes that have the turning radius of your average airliner, running treadless tires that are only as wide as your thumb. Come to think of it.... I’m not even gonna try it.
  • 1 0
 @ecologist: oh and rim brakes. Don’t forget the rim brakes. I know I want to be traveling 50mph and then depend on rim brakes.
  • 11 0
 Each bike needs different pressure; Trail bike, DH bike, DJ bike, Commuter, Unicycle, Tricycle, Adult Trike, Scooter. You know the usual rides.
  • 8 0
 N+1
  • 1 0
 I dunno. 120psi works fine for my 700x23c tires, I don't see why I wouldn't run my 27.5x2.5 at 120 as well.
  • 10 2
 I prefer the "trucker" test. Thump it and listen to the pitch of the sound. If you took band class, when playing a C scale it is around "F" that I listen for. Not too low or high pitch.This will produce a similar ride quality no matter what size tire or wheel. I like em 3" wide. For hard DH riding I bump it up to A sharp. Doe-Ray-Me-Fa-So-"La"-Te-Doe. Sweet Trail Music...
  • 7 0
 @Chonky13 You need to make an instructional video on how to check your tire pressure wearing a truckers hat (preferably "CAT" branded) and pack your lip with a pinch of SKOAL.
  • 1 0
 @indydave124: or a video of a group ride where everyone is checking their pressures.
  • 9 0
 Why no ask about rider weight? buddy of mine is 30lbs less and can run way lower pressures than I can.
  • 6 0
 pretty sure that your 270lb buddy should have the same tire pressure as you. Wink

#boomstillgotit
  • 11 0
 42.0 front, 69 rear
  • 1 0
 88 psi in the forks.
  • 5 0
 experimentation and consistency are key in my opinion. i use a digital gauge that will read out to my 25 psi ideal. try to stick with one gauge and find what works for you and that gauge. if you are going between floor pump gauge, digital gauge, and an analog gauge, you may never know what your PSI is. -- Segal's Law: "A man with a watch knows what time it is. A man with two watches is never sure."
  • 5 0
 also depends on the season, winter I run softer, late spring/summer/fall I run harder, 3-5psi. I often put 30 in the back so I won't have a problem, wouldn't want to burp railing the corners when it is hero dirt. I would rather have less traction than risk burping or pinching a tire!
  • 1 0
 This.....Winter time is for low pressure. Shit is slick and muddy and I'm not doing any 30km epics. Spring time when the dirt is hero dirt the pressure goes up cause I'll burp the tires at anything less than 25psi. Summer time it doesn't matter cause I'm the lake drinking anyhow....
  • 4 0
 Where's the option for tire inserts, which one, and in front or rear tire? Of course then you start to get into reinforced casings, downhill casings.

Heck I'm even running Huck Norris on the rear of my race hardtail.

Flats suck, but so does running sky high tire pressures. #notthemid90's
  • 1 0
 Was disappointed there wasn't an inserts option either! I run them front and back with single ply tires.
  • 3 0
 Then there was that one rider that always let a little air out before descending like everyone else. Except she never aired back up until someone noticed her pressure was down to about 5 psi. Or my mechanically challenged friend that did not know she had a pressure gauge on her foot pump. Always showing up for rides with 10 psi or so.
  • 3 0
 Can a tyre manufacturer please create a 2.8" DH tyre that not a "Plus" size balloon? I would like a 2.8" super tough DH casing that has a low profile so that it doesn't need 35+ psi just to stop it trying to tare itself off the rim in corners and sideways jump landings/take-offs.
  • 2 0
 I like the Surly Dirt Wizard. The casing measures 2.8, but the side knobs are 75 mm edge to edge when new. Tough tire.
  • 2 0
 I seem to be in a constant struggle to find the exact right pressure. Running DHF 2.6 EXO front/Rekon 2.6 EXO rear in hopes of saving a little weight and if I get to where the rolling seems quicker I'm bouncing off everything on the trail, but at 235# it seems like the EXO has squirming/rolling problems much below 26-27. I'm not a super aggressive rider but maybe being a fat boy I should just be on heavier casings. Going to try the Schwalbe Apex next since the switch to Addix seems to be making their tires last longer. If those don't feel good I'll probably go back to Maxxis DD or TCS Tough and focus on taking the weight off my body instead.
  • 2 0
 I am just under 200 pounds with gear. EXO is not enough for me in colorado. I can barely make it a couple weeks without tearing a tire.
  • 1 0
 @adrennan: I don't really have problems tearing but definitely feel some tire roll at not very high speeds if I'm running at 25-26.
  • 1 0
 Try the DoubleDown casing if you like the Maxxis tread
  • 3 0
 Try the specialized 2.6s in 2bliss grids. I'm a big boy and can run them in the low 20s.
  • 1 0
 @KotsosK: the one double down i tried didnt last very long at all. tore a knob of an aggressor double down.
  • 1 0
 @yeti-monster: Might try those after the Schwalbes if they don't do the trick.
  • 4 0
 I’m not heavy at all but I’ll burp an exo at anything less than 30 psi which makes them unusable as at those pressures they’re pinging and bouncing of everything. Well worth taking the weight penalty for tougher tyre. I’m on double downs and I can run them at 22f 24r without tyre roll or burping.
  • 5 3
 Floor pump gauges often vary 5 psi or so which accounts for 15-25% of total tire pressure for most of the poll respondents so far. That's a massive window that will directly and dramatically affect you ride. Digital gauges are like $20. If you ride even once a week that's less than 40 cents per ride for a year's worth of more enjoyable riding.
  • 3 0
 I use my floor pump gauge and call it good enough because it feels like too much work to take the time to thread another device onto my presta stem.
  • 31 0
 the most important thing though is to use the same gauge all the time. once you find the pressures that work best for you it doesn't matter if the gauge is off by 10psi. as long as you stick with the same measuring device you'll always be where you need to be regarding your tires working how you want them to.
  • 6 0
 what if people have adjusted to whatever their floor pumps happen to read though? it isnt the accurate # telling them what they should run, its the feel thats telling them what they should run. doesnt matter which measuring device is more accurate. its a matter of precision and duplication of the reading. shrug.
  • 16 0
 Don’t forget to confirm your floor pump gauge reading with another gauge. Then verify that other gauge with a calibration gauge, then calibrate the calibrated gauge. Then verify atmospheric pressures are the same. Oh, did I leave the stove on?.....
  • 1 0
 @literally: Great advice.. I've found such differences with digital gauges, as well as analog gauges, floor pump, etc. I had a digital Smartguage that supposedly went bad over time according to LBS purchased from , returned and replaced for free. The variances from one gauge to the next was up to +/- 20%. I had four gauges - 1 digital, 1 floor pump, 2 analog (1 off compressor and 1 handheld) -- all with different readings. crazy..
  • 1 0
 @Dethphist: You don't have to thread most of them on.
  • 2 0
 Ah-ha, that's why nobody can agree on tire pressure, we're all using different gages, punps, digital, analog, etc. I bet we are all actually riding the same pressure after all!
  • 2 1
 @literally: That's true; if you're always off by ten and you know that then you're good to go. Sometimes, though, the variance in the gauge also varies. 5 psi off today, 8 psi off tomorrow. It happens and for the cost of a couple of those fancy beers that are all the rage right now you can just get an accurate pressure gauge.

For the record: www.pinkbike.com/news/whats-in-a-world-cup-mechanics-toolbox-2017.html
John Hall. Aaron Gwin's mechanic. Seventh picture. Top left panel. SKS Airchecker. MSRP $24.99.
  • 1 0
 @Dethphist: you don’t thread it... you just pushed down and it reads it. Takes less then 1 second
  • 1 0
 @literally: yep, and since it seems most of us are using floor pumps to gauge our PSI and compare, it’s those using more precise gauges that will be way off.
  • 3 0
 I run tubes in my almost bare tyres on my ennduro bike and have gotten 4 flats in the past 5 rides. I’ve finally ordered some new chunky Maxxis tyres and then I’m going tubeless!!
  • 1 0
 I've run tubes in Specialized tires, Maxxis, and now Onza's and I haven't had a flat in 7 months. I've even run low 20's psi and haven't seen it being an issue. I have Stan's and am all set to convert to tubeless, but I dunno if it's even necessary or beneficial.
  • 2 0
 @huntstyle: 4 years - no flats - no tubes. And I was a late tubeless adopter. Get with it, my dood!
  • 2 0
 Investing in a good gauge is $ really well spent. Correct tire pressure is the best money you can ('t) spend on your bike to get better performance.


There wasn't a choice for "Tube in one tire, tubeless in the other"
I run tubed fronts, tubeless rear, especially on my hardtail. I never seem to get front flats, so don't bother with tubeless there. Anybody else?
  • 1 0
 All my flats are rear (2 or 3/year, average), and after 3 flats in the last 3 rides. Some-f*cking-how I managed to rip the valve off the tube in the last two ones :/
I preffer it that way cause I change front often depending on conditions.
  • 2 0
 I would like to know who is also running bib mousse style product, ie pro-core, cush-core ect.. I run one on the rear on my trail bike and love it. Has allowed me to lower the pressure in rear, and pretty much not worry about smashing into anything.
  • 1 1
 I run procore front and back. Singleply tires at 14-15psi front and 15psi back. Loads of grip, bomb proof and lighter than running dh tire with tubes! What is not to like!
  • 2 0
 @mikekazimer how can you throw this poll out there and not ask who's running foam tire inserts and their pressures?
Game changer!
  • 6 0
 What the fock is psi? 2,2 bar
  • 2 0
 This is troll bait
And my personal observation
When I ride other people's bikes I'm astonished at the amount of damping to keep the fork up high
It's call mid support
I also notice the rebound damping too excessive
To stop getting bucked off the bike?
An overdamped bike will work but you will be more fatigued
To compensate I observe plenty of people with tires off off rims from running the psi far too low
So most people run over damped bikes and compensate with absurdly low psi
PeriodWink
  • 3 0
 "Do you run tubes, or do you go tubeless?"
"I don't know" - How do you not know?!? If you don't know how can you be defensive about one being better than the other?
  • 5 0
 The non-mechanic rider probably doesn’t know if their partner converted them to tubeless or not.
  • 1 0
 Don't be surprised. I have loads of friends that I respect and who enjoy riding mountain bikes but who haven't the slightest idea about how they work. Similarly, I used to work in an auto shop and was surprised how many people thought their car tires had inner tubes.
  • 1 0
 Bought a digital gauge, did a lot of testing and settled at 19 front 23 rear on 30mm carbon rims. felt great, never squirmed... Then both my rims cracked, the rear one quite spectacularly... So i run +4psi front and back and a huck norris rear Frown
  • 4 0
 Free advice: ditch em' carbon hoops for some alu ones and be a happy rider ever after! I had the same experience with my 35 mm i.w Nexties and switched to some Dt XM 481.
  • 1 0
 Many of these comments state one of the most important things: So many variables that this is almost useless. However, one repeated comment is sooo important. Get a digital gauge and use it, alot. 1 psi on a bike can make a big difference. The only way to find what works and keep it there is this. simple, basic thing.
  • 2 0
 No offense, but why digital? Accu gauge makes an Ansi certified 0-30psi guage that is guaranteed for life. #analogueissexy
  • 5 0
 Whatever Waki runs cause he knows everything!
  • 1 0
 buy a digi gauge! the gauge on my floor pump (joe blow) is useless at lower pressures. i weigh in at 230lbs, i run specialized grid tires, 3.0" wide, 27.5 rims. front ranges from 20psi if i want to keep up with my pals, all the way down to 14psi when looking for traction. back tire floats between 18-20psi. i play the pressures a lot and notice a huge difference, it's like owning two bikes
  • 1 0
 When you take your first 100 meters and feel that the bike is perfectly balanced,tire pressures are just perfect,but then after 20 km you start to feel like who the well put air in my tires ,cause they just feel too bouncy and stiff ,it’s a tricky thing tire pressures but makes a huge difference in bike riding it’s just almost 70% of the riding feel (in my opinion)
  • 1 0
 Definitely love the imperial units; and the discussion. I’m looking to answer B and D to the last question. I use the gauge and the feel. Don’t underestimate the feel, which is everything.


No doubt the tubeles advances are huge, allowing relatively lower pressure when conditions call for them. I find that running tubeless, with an often half-crusty valves, the gauge isn’t always accurate and air doesn’t flow in freely.
  • 1 0
 Yes rider weight is the mitigating factor in all of this so without reference its a waste of time.

Now for a more important question with digital tyre gauges, how do you use on on a presta valve without actually losing some air and effecting the pressure. I have never seen one that does not let air escape when putting it on.

Please though school me if I am not using it properly Smile
  • 1 0
 I run Procore! Best Upgrade possibly made in the last couple of years

yes a bit expensive & heavy - but the experience of running down to 13psi on muddy slippery terrain without burp/flats and with so much grip is undescribable
  • 1 0
 so on a real level, i've been riding a few years but i am kind of learning as i go, i had a kid at valmont bike park in CO tell me that i need to be running way higher pressure for dirt jumps than for resort riding, true or no?
  • 1 0
 I’ve received stick on here before when I say I run 45-60psi depending on the trail. But I’m a big guy 250lb and have fairly narrow rims and if I ran them any lower I’m prone to pulling the tyre off the rim. In the past on wider rims when I was lighter I happily ran 20-25psi
  • 1 0
 Well.
The Dr.'s advice is to cut the salt from our diet!

There's NO fixed pressure. If ridding trail for fun, one may run lower pressures. If racing (especially through sharp rocks) one may need more pressure (a pint of salt in your salad).

Hmmmpfff
  • 1 0
 What about changing tire pressure depending on the trails I'm on that day? At 220 lbs on muddy sandy coastal single track and I'll go all the way down to 22 front and 25 rear... dry day in the bike park railing berms will go all the way up to 30 front 35 rear to get rid of tire roll. I never have a "standard tire pressure" it's always dependent on the trail at hand.
  • 1 0
 Digital gauge. Tubeless trail bike, tubes in the DH and the fat bike. Trail bike and conditions can mean 18-22psi in the front and 20-25 in the rear. DH can go from 30-32 or so. But I'm much better on the trail bike than the DH bike....
  • 1 0
 Is there a baseline guide available that suggests a starting pressure for a given rider weight and typical types of conditions, factoring in tyre size also perhaps? That would be helpful, just like the basic recommended air pressure setting for a fork or shock.
  • 1 0
 I couldn't give my answer in the last box, cause right now I'm running my front wheel tubeless, but my back wheel still has a tube in it. Reason for that is, that my back tire got to old to hold in the "milk" but still got much of the profile.

And before I did my first DH race (in pouring rain), I rode with 36psi in front and 41psi in the back.
  • 1 0
 Running super low pressures is like the first time you have sex without a condom-it feels so f'ing good but you know its risky!

Berkshire Rider
255lbs 2.5 minions 18psi front 20psi rear
Keep in mind these are the numbers my floor pump tells me, in actuality digital might say I put more in. How accurate are modern floor pump gauges??
  • 1 0
 These polls are f*cking retarded

It's simple, slow careful riders can run lower pressures if they want to increase traction a bit, but there is a cost.

After a certain point, anyone going at pace will need higher pressure if for no other reason than to preserve wheels. Let's be real...there are no solid riders who run sub 20psi and aren't blowing up wheels. Hell, wheels blow up at 30+

obviously if you're exceptionally light or heavy, then you're an outlier
  • 1 0
 When I ran tubes
40ish rear 35ish front

Now that I run tubeless
30ish rear 25ish front


I rode tubes for about 15 years, and now I love tubeless. The only downside of tubeless is that I have to check my tires at least once on the day I take my bike out to ride. But that disadvantage is still better than tubes in every way. I run lower psi, have more traction, and never have to worry about flats. I used to get pinch flats, and thorns popping my tubes constantly, I used so many patches and tubes that I probably could of bought a set of tubeless tires and new rims for each bike.

Tubeless really is better, and my 27.5" wheels probably help me ride smoother too.

I think a lot of people who knock on tubes, and or 27.5" tires probably haven't actually used them; and I think it's foolish to knock something you haven't tried.

I won't knock someone for rocking tubes, but I laugh inside when people act like tubes have an advantage, because they don't.
  • 2 0
 I use my hand and go by feel. Once in while at the shop I use the gauge but then still alter it by feel in the first few rides..
ps: 139 people do not know if they run tubes or not. Wtf?? Ahahaha
  • 3 0
 You can't talk about tyre pressure without talking about tyre inserts. For me, Procores changed everything
  • 2 0
 Aren't the two pressure polls worthless with no data to cross reference with? No 26, 650 or 29 info etc...no rim width info...
  • 2 0
 Note to editors: Can add more options to last poll? I ran tubeless rear and a tube in front on my am/en and dh bikes. I call it "one tube less" setup.
  • 2 0
 I was surprised to find that my new Topeak gauge reads 3-4psi lower than my Park floor pump. Now I need to compare them both against a few other high quality gauges.
  • 1 0
 I have the same issue with my topeak digital gauge. It reads significantly lower than all of my other gauges. I am wondering if it somehow got damaged by tire sealant.
  • 1 0
 Seeing the pole it makes me laugh.. I remember when tubeless tires and rims came out and everyone lost their sh*t sayin they would never run tubeless they're not reliable etc...
  • 4 0
 This confirms I'm a fatty.... 20s ha in my dreams
  • 2 0
 Haha same here under 35psi and my rims on the floor
  • 3 0
 A body weight poll included would of been interesting to compare against average tyre pressure choices.
  • 3 0
 Right on the side of my Minions it clearly says 65 PSI. You would be a fool to run anything less...
  • 2 0
 i wanna know who is getting away with less than 30 hell even 33-35 i would flat or bend my rims in 5 seconds also slightly fat guy here hahah
  • 1 0
 19-20 front / 24-25 rear on 650b tubeless setup. I weigh 165-170 and this works well for me
  • 1 0
 Rim width > rider weight > conditions = Tire Pressure

For me:

30mm ID > 160lbs > Summer/dry = 19 Front, 24 rear

30mm ID > 160lbs > Winter/wet = 17 Front, 20 rear
  • 3 0
 Where is the "I run tubes with tubeless sealant" options? Not seeing "I run tubeless with inserts" either.
  • 1 0
 Hmm, pressure choices in 2-3psi increments. Most use floor pump pressure gauge which isnt super accurate. Results, people being dicks about pressures they arent actually running Smile
  • 1 0
 No poll for rider weight? 140lb rider and a 200lb rider are two completely different scenarios.
And no selection for feeling pressure with your thumb and saying "Fug-it, send it"?
  • 1 0
 There are over 230 "idiots" on here running their tires at over 40psi. & about 50 odd balls running less than 10psi. I find that interesting and entertaining for some reason.
  • 4 1
 "How do you measure tire pressure?": missing answer, "in bars" Smile
  • 3 0
 They tell you what PSI run right there on the side of the tire. Duh!
  • 4 0
 28.99 psi no matter what
  • 2 0
 Tire pressures are entirely relative to rider weight and average speed & cornering velocities.
  • 1 0
 Pump it up if you're fat and fast.
  • 1 0
 22 in the front 24 in the rear on my minions, I care about your opinions. Think I don't know my dirt well you suck and your wrong.
  • 1 0
 Kids come to our jumps with 15psi because it's fashionable to do cutties every where. Case every jump, can't get through the line
"try at least 30"
Clean the line
Derp
  • 2 0
 The “I don’t know” option for tube/tubeless was a stroke of genius! An “idiot column”. Every poll should have one!
  • 1 0
 My current tyre actually says min pressure is 35psi max is 65psi. It’s a very hard compound tyre perfect for all I have time for at the moment that’s blasting fire roads
  • 1 0
 I just pump my tires up then let air out until it feels good on the trail. Never really know what my pressure is but i should maybe try a gauge.
  • 2 0
 "Do you run tubes, or go tubeless?"

"I don't know ?"

Huh ? How the f*ck don't you know ? f*cking Dentist !
  • 1 0
 if I'm riding big jumps and flowy stuff alike that I go 35-40 for good rolling speedbut other than that a lot lower, for the trails and all the techy stuff
  • 1 0
 I usually pump air in the tires untill they are fairly firm. It usually equates to around 35-40 psi in my 2.5in rear and 30-35 psi in the 2.7in front tires.
  • 1 0
 Rider weight is also important to consider - a heavier rider will require more air pressure to have the same cornering stability.
  • 2 0
 No Procore / DeanEasy option under tubes / tubeless?
  • 3 0
 30 PSI in my Minions...
  • 2 3
 i dont care 'bout your opinion!
  • 2 0
 sub 18psi as standard on wide rims?
  • 2 1
 28.99 psi for me edit, damn it, read up and got beat to this one. Oh well.
  • 2 0
 1,5 bar front and 2 bar back Big Grin
  • 2 1
 Run my DHFs at 40. Never get flats, and I like how easy it is to break traction.
  • 2 0
 Just triple up on huck norris and don't buy a pump?
  • 1 0
 Can someone enlighten me to the advantages and disadvantages of tubeless tires?
  • 8 1
 Here ya go


Pros: No tubes.

Cons: Tubes.
  • 5 0
 By running tubeless you:
-Save the weight of the tube;
-Can't get pinch flats (unless you manage to smash your wheel soo hard that you cut the tire);
-Can't get flats from things like spiky plants.

You might also be able run slightly lower pressures than what you use on tubes.
  • 1 0
 Only disadvantage I have come across is difficulty getting a tubeless tire to seat on the rim sometimes, apart from that....it's one of the best 5 things to happen to mountain biking in the past 25 years.
  • 1 0
 That’s it? I’ll stick with tubes. Thanks
  • 2 0
 @robito: I can't tell if you are serious or not. Tubeless is advantageous in every other aspect; less friction between tire and tube, ability to run lower pressures, less rotational mass. I'm probably missing some other points, but I LOVE tubeless. Try it before making a decision one way or the other.
  • 1 3
 The interesting part for me is that by far the large majority of people are running tubeless. I was an early adopter quite a while ago, so it is interesting to see that most people are tubeless now, but bikes, even $10,000 ones still come with tubes, I think Giant being one of the few exceptions.
  • 6 0
 Storing and shipping with them with sealant already in the tires would be a nightmare. A lot of stock builds have the rims taped and some even come with the valve stems. All you gotta do is take the tube out, throw the sealant in, and you're good to go.
  • 2 0
 @fullfacemike: Wouldn't it be the shop's responsibility a part of assembly? Obviously wouldn't apply to online sales, although I once bought a new bike online that came with two flat tires, each with a puddle of Stans in the bottom. I aired them up with floor pump and rode until the tires wore out with no problems.
  • 3 0
 @ecologist: It is, definitely. You do it when the customer buys the bike, not when you put it on the floor. Not everyone wants tubeless. Not every bike sells before the sealant would dry up. Every second you spend on the bike prior to purchase cuts into your margin and shops have enough stacked against them as is. Not an excuse for shops to cut corners, but totally justifiable to only do the job once.
  • 1 0
 @fullfacemike: yeah, I see your point. I forgot that most bikes are probably on the floor for months or longer before going out the door. Can't exactly have them all sitting around on flat tires the whole time...
  • 2 0
 This is getting blown out of proportion I need some air
  • 2 0
 People who like rock hard tires are dumb.
  • 1 0
 They are faster though - can't dispute. I don't like pinballing so I don't do it.
  • 1 0
 People who like soft, squirmy, wobbly TYRES are dumb. ;-)
  • 2 0
 "I go by feel - my hand is the only measuring device I HAVE....."
  • 2 0
 80psi of helium Float over everything
  • 3 1
 30psi in my minions I don't care about your opinion
  • 2 0
 sorry but 26 inch 4 life and 4000000psi in them
  • 2 0
 25 in the front 35 in the back.
  • 3 1
 29psi for life. #26psiisdead
  • 1 0
 InDUBitably you meant 28.99 psi...
  • 1 0
 If it's soft dirt/muddy. I go by the can i press a knob into the tire. If its fast and dry, 36psi all day.
  • 1 0
 This is kinda s joke. Wheel size. Tire width and tire durometer. Rim width. Rider weight. Riding style. Type of bike
  • 1 0
 I use beer as my tire sealent. Takes the pressure off worrying about pressure.
  • 1 0
 There should be a final question about weight. Im a heavy dood so i need a bit more pressure in the tires
  • 2 0
 doesnt matter, do what feels good
  • 2 0
 I measure the tire pressure with the shock pump.
  • 1 0
 Put 30psi in front and rear. Let a bit out the back, let a bit more out the front. Done.
  • 2 0
 The ''I don't know option" lol
  • 1 0
 40 oz of orange seal per tire and 5 psi of air for Chuck Norris quality performance.
  • 2 0
 Run the same pressure as your wheel size.. 26, 27.5 or 29 psi....obviously
  • 2 0
 supossed to fill up with 30pounds of CO2 to solve the pollooshun problms
  • 2 0
 I run about 210000 N/m². No clue what that equates to in pound sterling.
  • 1 0
 The 122 people who replied "I don't know" to the "Do you run tubes, or go tubeless?" question are the best part of all this!
  • 1 0
 Tubeless? Wtf is tubeless?!?!?
  • 1 0
 there should be an option for tubeless up front, tube in the back, or just "tubes when suitable, tubeless when suitable"
  • 1 1
 I run latex inner tubes because i don't fall for all the marketing bullshit of tubeless. All the advantages and a lot less. disadvantages
  • 1 1
 Lol. You are a funny guy
  • 2 0
 +3psi for us chubby guys
  • 2 0
 Been playing with different casings in hopes of enjoying some of the cush and grip. Might try CushCore just for laughs but still can't wrap my head around the price tag.
  • 1 0
 Or heavier but not chubby.
  • 1 0
 "Do you run tubes, or go tubeless?" I don't know
  • 1 0
 What are tubes?
  • 1 1
 UST tyres and rims with DH tubes and sealant in the tubes and in the tyres. 45PSI. No flats, ever.
  • 8 0
 No traction either
  • 1 2
 @yeti-monster: traction is useless for racing.
  • 1 0
 Another useless P.B. poll that leaves out vital criteria.
  • 1 0
 30psi in my minions, bang bang, I you are different, you are wrong!
  • 2 1
 My tires can only be pressurized in metric sizes.
  • 1 0
 I run 28psi of helium to make my bike lighter
  • 1 0
 It also doesn't effect on the pressure when temperatures changes
  • 1 0
 Every tire is different just like the PSI
  • 1 0
 I run a mixture of nitrogen and helium. Best of both worlds
  • 1 0
 I run tubeless till' I slice the tires. Tubes f/r right now.
  • 1 0
 front real soft, rear real hard, ftw!
  • 2 0
 deflate until you flat
  • 1 0
 what about a modern tire size like 2.6-2.8 and run 12 psi
  • 1 0
 60psi in my minions because I hate pedalling
  • 1 0
 I usually measure tire pressure in bar.
  • 1 0
 This pole has a serious flaw. You need to include rider weight.
  • 1 0
 You have not lived until you’ve ran 1 psi on a fat tire.
  • 2 0
 I ride bikes
  • 2 1
 Who the f*ck picked 'Less than 10 psi' ?
  • 2 0
 fat bikers
  • 1 0
 "dont care about your opinions"
  • 5 5
 Why does pinkbike keep on doing their polls in imperial units?
  • 1 0
 207 kPa in my minions. I am not caring about your opinion.
  • 1 1
 Gwin doesn't use air, neither should you!
  • 1 0
 i run 28.999999999 psi
  • 1 3
 couldn't tell you want pressure I run nor can I tell you what pressure or sag my shock/fork run either.
  • 2 3
 *tyre
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