How Much Is Too Much? | Get The Right MTB Tyre Pressure

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Tyres are the first point of contact between your bike and the ground so it's vital to make sure you look after them and set them up correctly for the riding you are doing. In this GMBN Tech video, Anna helps run through some tips to help you decide on the right tyre pressure.
⏱ Time Stamps 👇
02:26 - Traction
03:11 - Cornering
03:47 - Comfort
04:35 - Performance
05:38 - Should Your Tyre Pressure Ever Change?
05:06 - Terrain
06:56 - Rider Weight And Force
07:47 - Tyre Width & Compound
08:59 - Weather Conditions
10:20 - Tyre Brand Recommendations
10:56 - Tubes Vs Tubeless
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What tyre pressure do you run? Do you chop and change pressures depending on the riding conditions? Let us know 👇
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Опубликовано:

5 июл 2024

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Комментарии : 126

@DirtlovR Год назад

* squezze squezze * hmm... * psssss * * squezze squezze * should be good.

@nobrakes7247 Год назад

Exactly

@djsonfire0001 Год назад

For real. I think I'd rather have a Schrader valve over a presta. They are just stronger. And easier to operate

@mangoshake 10 месяцев назад

Honestly, I used that technique for a whole while before I got a digital pressure gauge. It turns out I was running 12psi front and 14psi rear all this time! No wonder my tires rolled so slowly and my tires looked flat all the time when I sat on it. But I felt that it was the pressure I wanted to run on the trail; that was, until I started running the recommended pressure on the chart accurately. It's a miracle I never got a pich flat.

@dariusf2 Год назад

I also run a little higher in rear. Definitely experiment, I run much lower pressure now then when I started riding many years ago.

@zakariaabderrahmanesadelao3048 4 месяца назад

Ive learned so much more than I expected going into this video as an absolute beginner.

@Milessongs Год назад

This has to be the most comprehensive collection of useful, practical, well-explained tyre pressure info on line! Thanks Anna, well done!

@gmbntech Год назад

Thanks! We hope it helps.

@danh925 Год назад

@@gmbntech its certainly given me more to think about, i hate having to think. But there is alot of truth in this clip. I have my bike set up perfectly for my local park. Take it a few hours north and i may as well be bombing on a tricycle because it feels so foreign. My riding friends laugh because I’m always tinkering. Im envious that they can just adapt to what ever is thrown at them.

@brendontaylor7420 Год назад

Good on you Anna for tackling such a mine field of a subject. Awesome job.

@jamesfiegel9675 Год назад

Excellent topic to cover and you did it well, thanks :)

@winklertribe5268 Год назад

Great episode Anna! Thanks!

@backcountryFLcyclist Год назад

On a 2.8-3.0 tire I ride 12psi in the front and 19psi in the rear for Sandy conditions and 20psi in the front and 30psi in the rear on hard pack or pavement. I weigh 250lbs.

@danleil9897 Год назад

Great camera work. Helps to see how the tyres work in slow motion

@johnreese3762 Год назад

Thanks, I needed that!!

@raphaelwolff8205 Год назад

Cheers Anna very usefull information.

@Motoadventurespr Год назад

Thanks, very good information

@j.albertogratacos2076 Год назад

I look at tires as my first responder suspension and approach pressure that way. Especially since I ride a hard tail more often, which gives you a better feel how your rear tire "suspension" is tuned. I noticed that when I hit the right low psi, rebound on small hits was better, but it was bottoming out too easily and hitting the rims on the larger impacts. So I added a volume space. In this case, a tire insert. This allowed me to keep the low psi rebound that I like with a nice progression and ultimately protecting the rim. Also, it cured the side effect of nice, low psi which is the bending on corners.

@islarun4103 Год назад

Interest of what the diff Tire pplus insert vs more carcass tires

@j.albertogratacos2076 Год назад

@@islarun4103 in theory, the softer sidewall with inserts is very progressive and provides better grip on sharp stuff while still keeping the sidewalls from flexing. A stronger sidewall without inserts will feel stiffer on all terrains. Good comparison for a GMBN video!

@nicolaslaurent7006 Год назад

I usualy like this formula : my weight (in pounds) / 7 - 1 gives my front tire pression in PSI my weight (in pounds) / 7 + 2 gives my rear tire pression in PSI That's my starting point (can't remember where i found it but works great for me and my HT)

@DISABLED12-7 Год назад

This gives me 39 psi for the front for me, and 42 in the rear for me. I run about half that. :)

@nicolaslaurent7006 Год назад

@@DISABLED12-7 yeah... I guess there is no real formula... As i'm 80kg (176ish pounds) i'm lucky to be in the ballpark ;p

@maciejsiakowski5929 Год назад

@@DISABLED12-7 same for me! i'm 113 riding 21 and 25-26

@BlackMan614 Год назад

Is that for tubeless?

@XENOEFFECT Год назад

I ride 50 psi and I'm 170 pounds, I tried going lower and the tires started folding around the corner...

@reinholdachleitner2069 Год назад

Nice one Anna,thanks for the tyre pressure tips.It's part of the suspension in a way tyre pressure.

@jimrutherford2773 Год назад

Yes, good point. Removing a few PSI is like adding a few millimeters to the suspension.

@BrandonTaylor-bg1xv 8 месяцев назад

Very informative video judt bought a emtb had a few incidents so am gonna lower my pressures hopefully i will be able to stay on a little longer than 10 mins ........ sweet bike in your video

@BoomerMTB 8 месяцев назад

Anna love your videos.. You keep me watching GMBN Tech!

@gmbntech 8 месяцев назад

Awesome! Thank you! - Anna

@SafwanRahmanofficial Год назад

I am on a hardtail using Assegai 2.5 tubeless, 15psi on the front, 18psi on the rear. My weight is 56kg

@ikerteuscher Год назад

Nice one Anna, well done on a complicated and controversial subject. Congrats

@notme-kc3pq Год назад

That is full of great advice, suspension and tyres are always about choosing a compromise. As a beginner the find your favourite trail , make a 2psi change and repeat is the best advice as you can learn what too hard and too soft feels like without having to learn a new trail at the same time

@gmbntech Год назад

Definitely! That kind of bracketing testing (having a baseline, making a small change one way, then a small change the other way, then comparing the three results) is a great way of finding what works for you. Of course the other thing to remember with testing is to change one variable at a time, especially with suspension!

@marcusneal7428 Год назад

I have a lapierre e-zesty and i weigh 15stone, so i go with 30psi rear and 28 on the front, tubeless. That seems to work for me

@Zmit Год назад

Old-school "knowledge" is that the least rolling resistance is obtained when the tire wall sag 15% in height when under static load.

@rogercmerriman Год назад

I’ve run the same pressure for few years now, about 30psi which seems to for the tires and use be about right, ie if I really push it in berm I can feel the tire move but not squirm. And can get chattery on very rough trails though making sure I’m at 30% sag seems to mostly smooth that out. I have wondered about plastic tubes, as they did feel fairly great on the gravel bike though the MTB has much stiffer tire sidewalls, so how much it would notice?

@GIFD Год назад

At an enduro style bike park where you have to pedal back up the hill a few hundred meters between every run do you reinflate your tires for pedalling up? If I run such low pressures I just feel like I'm pulling a piano behind me when going up.

@Lighty_mtb Год назад

Some tyres like Michelin E wild are more grippy when run higher pressures there’s so many factors

@thevapingpolisher9717 Год назад

I run rear 28 front 25 for my xc trails

@jamesmcgowen1769 Год назад

I ride my 3x9 HT XC at 60 psi for less rolling resistance on road I drop it down roughly 50% when on a fire trail - which isn’t often enough!

@richardhaselwood9478 Год назад

My 2c worth is that it seems like people are riding too much pressure. For reference, I'm about 86kg, and on my 120mm trail bike, running Maxxis Forecasters, I'm running 17/19 psi front and rear. Any higher, and I feel I'm bouncing around and it's quite unpleasant. My trails are in Queensland, Australia, and I ride XC/ light trail. Even, a while ago, when I was a lot heavier, I would be only running 23/25psi on an XC hardtail. Indeed, on my road bike, with 28mm tyres, I'm running about 62 - 68 psi, with tubes (almost never get flats FWIW). Thanks for the video guys.

@knott4me561 Год назад

It really does depend .im only 68kg and run heavier duty tyres but no way would I be able to run those low pressure you do I'd destroy my rims and the front tyre support would be awful .

@richardhaselwood9478 Год назад

@@knott4me561 Fair point. I'm a super crappy rider, who doesn't "go hard". But, if I go any higher pressures, I feel I'm getting bounced around all over the place.

@rrolleman4879 Год назад

I'm 175 lbs, have a 170/180mm travel bike, ride fairly hard and run 19 psi front, 23 psi rear on Maxxis exo+ with no inserts.

@richardhaselwood9478 Год назад

@@rrolleman4879 Yeah, it's really a matter of how hard you are riding. I am riding at the XC end of trail (no inserts), and really feel like I'm getting bounced off roots and stuff if I run any higher pressures than about 1.3 bar on the back. If I was smashing into rock gardens, I'd have to run higher pressures (and inserts).

@doctajuice Год назад

180lbs, riding 27.5x2.5 and I usually go with like 22psi rear and 20psi front

@stevehayes8867 Год назад

Around 30 psi for my riding, maxxis dhf dhr tubeless setup 👌

@islarun4103 Год назад

I'am running 1/3nitro 1/3 sealent and 1/3 insert The pressure vari acording to the trail himself between compression

@FcryCola Год назад

I use the schwalbe tire pressure calculator. Really good for road, trail and park

@antc5010 10 месяцев назад

Well covered, comprehensive advice. However, pressure is pressure. If the temperature goes up or down, then the pressure in a tyre goes up and down, so you are only adjusting tyres to get back to your normal running pressure. Physics says cold air is denser at a given pressure, so it's efficient to use if you are trying to compress it into a scuba tank as it's "pre-compressed". However, because cold air is dense it takes more energy to compress at a given pressure than hot air. So technically cold tyres should be run at slightly lower pressure, though I doubt most riders would notice this small difference.

@phenofinder9145 Год назад

18psi front 19 rear

@cornishcactus 9 месяцев назад

27.5, 2.4 Kendas, about 220lbs all up weight. 18psi front 25-27 rear, went 20-30 the other day as I've felt a little drifty on corners just recently but the harshness was horrible, two taps on each valve ( about 1 psi each tap ) and was feeling ok again, still drifty tho, not sure why.

@jefflockyear1241 Год назад

My takeaway from this video is that we need automatic, on-the-fly, tire inflation systems :)

@filipdrs8998 Год назад

I ride a 150mm hardtail with tyre inserts and downhill rims. And I usually run about 1.4 bar in the front and 1.5 bar in the back on my local trail. In bike parks or mud I go even lover something like 1.3bar in the front and 1.4 in the back it’s also important that I run super downhill tyre casing on Schwalbe magic Mary that’s the equivalent to double down or dh casing Maxxis tyre.

@MrJob91 Год назад

Lol

@ltrtg13 Год назад

I currently run something 21 psi front and 25 psi rear. This is due t having a hardtail. I did run something similar to that on my full sus when I had one. That bike had 27.5" wheels with 2.3" tyres. My hardtail runs 29" wheels with 2.6" tyres. I could possibly go slightly lower on the front. However I may not want to much lower on the rear as it's a hardtail.

@drouleau Год назад

I'm around 160 lbs (73 kg) and on my hardtail with 29 2.6" tires, 14 psi front / 18 psi rear seems to offer a good balance of grip and comfort. I don't go crazy on the rocky stuff, so haven't had any rim strikes. I have tried putting one hand on top of the other on a tire and pressing down with all my body weight (feet off the ground), and the tire doesn't seem to compress too much (relatively speaking), so I definitely have some room to play with. Fortunately I'm not good enough to bomb down super technical, steep and rocky trails at mach speed.

@ichewtoast111 Год назад

27.5 20 front 24 rear

@mike78bassmanify 6 месяцев назад

Printed on my stock 29" 2,3 tires it says 35-65 psi. I guess I will try them at 35 then.

@stevengoodwin3154 Год назад

I ride faster at lower pressures. I found my preferred pressures by doing what Anna said, start at 25 to 30 psi (depending on all variables) and lower 2 psi every so often. When I feel the tires start to deform in corners, I add 2 psi for the safety factor.

@olibrown4270 Год назад

I like to ride a higher pressure especially on hard pack so on my tubed magic Mary's I ride about 30 psi which is quite high but I like the feeling

@gmbntech Год назад

If you like it, that's all that matters! Everybody has their own preference 👍

@alfagtv100 Год назад

Super useful tips. The 20% guideline was new to me and I love it as a starting point recommendation. 👍👌

@tomsing98 Год назад

That seems WAY too high. At 200 lb, I should be at 40 psi ... But I regularly ride at 14 psi on 27.5 x 2.6 on a hard tail on sandy trails.

@jamawhinney Год назад

@@tomsing98 Agreed, Tom. I'd be at 42psi and that's WAY too high. At 210 lbs, I run 30-32 rear and 26 in the front on 29x2.4 and 29x2.5. Any less in the rear, the tire tends to roll in high speed corners.

@fudganuld Год назад

I've been riding for decades and still don't have a PSI gauge,I just pump them up to they feel hard and thats its...Ha !!

@Whyusadd Год назад

Type of trail really is key.

@michaelbatey348 9 месяцев назад

As far as I'm concerned. Ride low psi for comfort feel it on a longer ride when your legs are tired from pulling ya low psi about. Ride high psi yes not so comfortable but cover far more distance easier

@jaad7562 Год назад

Actually you should pump your tires to higher pressure when it's hot because in low temperatures the tire carcass is stiffer than in high ones and the rubber compound gets softer and sticker when it gets warmer so you don't loose that much grip.

@MTBstuart Год назад

Not sure the 20% works for everyone or I'd start at 48 psi 😂 unless that is for tubes? Tubeless I go around 25-28

@theknights1512 Год назад

Got any info about how to measure you pressures? And also how to let air out of a tubeless set up without the risk of getting sealant in the valve and then it doesn’t seal correctly??

@gmbntech Год назад

A good quality digital pressure gauge should help you measure your pressures accurately, and let air out of the system to get them to where you need to be. You may find a small amount of sealant escapes when you drop your pressures a little, but it shouldn't be enough to clog your valves. If you do find your valves are getting clogged, taking them out and giving the valve core a clean should get them working properly again.

@nudgeA7 Год назад

what a pretty bike, :)

@bobothericefarmer1878 Год назад

Squeeze think pump or decrease

@toddkx2807 10 месяцев назад

I run 23.45 lbs in the front and 24.67 lbs in the rear. If it’s wet I’ll shave off .06 on the rear.

@ltrtg13 Год назад

On my hardtail. The Maxxis tyres had a max pressure of 40 psi. How ever the original wheels had a max pressure of 38 psi. Sometime the wheels can require a lower pressure then the tyres.

@mikemazzantini6397 Год назад

Usually right around 15 psi for me.

@chickenclips Год назад

You must weigh 100lbs

@KiaAlvin 11 месяцев назад

What's the animal in the background at 2:00? 🤔

@cornishcactus 9 месяцев назад

by the tyre? its a fern

@jasonprfrost1 Год назад

I Don't have the time to keep changing the pressure . I find if I squeeze the wall and it feels like a orange it is too soft and it should feel like an apple very hard. Really easy method to teach beginners as well.

@knott4me561 Год назад

Really does depend on the type of tyre .a exo maxxis at 25 psi compared to a scwalbe supergravity at 25psi will feel completely different using the squeeze test

@rrolleman4879 Год назад

You don't have 90 seconds to do something that makes a significant difference to ride quality?

@gregknipe8772 Год назад

it is important to note that tubeless and tubes ride very differently at the same tire pressure. tubes dont burp at low pressure, and heavier riders dislike tubeless for this reason.

@fredboudreaux9663 5 месяцев назад

She is awesome

@laeljon Год назад

11.5 psi rear, 12 psi front on both hardtail, and full squish....

@areyouoffit Год назад

I'm a fat bloke gotten back into riding weighing 300lbs and I run 34psi in the front and 40psi in the rear 😂

Год назад

I weigh 374 Bananas. How many Fliewatüüt should I put in my tires max?

@cornishcactus 9 месяцев назад

@TimMillernapavalleyfilmworks Год назад

Where’s Doddy???

@Cous1nJack 11 месяцев назад

Apple on the back. Orange on the front.

@dlastmohican71 Год назад

Im more confused now

@milktop1 6 месяцев назад

18 front, 20 rear up to 22. 200 pounds and probably 207 with clothes and gear. 29inch wheels. Aggressive trail riding. 5 more for enduro

@user-mu9ke9ex9f 15 дней назад

Mountain bikers tend to use tyre pressure as a form of suspension. They lower the pressure for the comfort and then they start imagining all sort of other non existent benefits. By looking at her tyres visually, I can see she is running on to low pressure but I guess she likes the soft ride feeling.

@TivonSanders Год назад

A little trick I do when I'm on the trail if the trails is gonna get too rough, is simply get off the saddle and stand up a bit, that way I'm not feeling the impacts. I still run tubes on my tire, so I need to run about 40-45 psi, and I'm around 200 lbs.

@colinmcnally5931 Год назад

I run mine rock hard for road rides and much softer for Ridgeway rides. Never ever done ant pressure testing to see what psi they are. Just do what feels right and works for you. Life is too short to be worrying about have I got the exact right pressure. There is no exact right pressure but I guess you can make a youtube video out of it !!

@Ghostina1 Год назад

Too much Tyre Pressure is when your spokes brake when you land in a transition!

@dystopiaisutopia Год назад

Break*

@galenkehler Год назад

Push your thumbnail into the tire, and pump up the tire to the pressure that allows your thumb to push in the correct amount.

@truepaulesko Год назад

Am I the only shows ne who doesnt measure the pressure on tires? I just inflates untils its more or less hard 😂

@madagascarcookingchanelfoo9544 Год назад

This New présenter is too commercial

@dystopiaisutopia Год назад

Less skilled riders love low pressures lol

@colinmcnally5931 Год назад

Yaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaawn!!!

@crankshoptv8141 Год назад

Most people run their tyres too hard. Back in the (tubes) day higher pressure was necessary to fend off punctures. Modern tyre technology lets you get away with much lower pressures.

@dystopiaisutopia Год назад

25psi is perfect

@jannetuovinen6371 Год назад

If you get a lot of tube punctures with low pressures then the rocks are hitting your rims (snakebites) and the same thing will happen using same pressures riding tubeless. The only difference is that your tube doesn't break running tubeless but your rims and tires will still get damaged. Ride correct pressures and you will have no problems tubes or tubeless.

@crankshoptv8141 Год назад

@@jannetuovinen6371 running tubes at low pressures almost guarantees a snakebite puncture. With tubeless that simply isn't the case, I can run as low as 10psi on a 2.4 27.5 Tubeless and am yet to get a snakebite style puncture.

@jannetuovinen6371 Год назад

@@crankshoptv8141 You get snakebite puncture on tube when rock hits through the tire to the rim due too low pressure. Taking the tube away and running the same or even lower pressure doesn't change the fact that rocks still hit your rims. You just don't get the snakebites anymore but your rims will still get hit and IMO thats when the tire pressure is too low tubes or no tubes. You must be ultra light riding 10 psi on 2.4 tires. I get rim strikes sometimes using 20 psi on 2.5 tires.

@mitchellmtb7202 Год назад

Didn’t know tire technology has made great strides in the last 20 years.

@madmountainman5197 Год назад

6' 5" and a tad under 240lbs of fit middle aged rider gives me 48psi, which is over the manufacturer limits. I find 24-28psi works dependant on tire casing. Oh, and if you were single and I was ten years younger, i'd be asking you out on a ride down here in Devon!😁😉

@SovranMonk Год назад

60psi in a 2.4x26

@havitharry Год назад

Where’s Doddy?

@markwilliams5654 Год назад

Bar is metric psi is old measuring like the American dinosaur

@JB-1138 Год назад

Seems like if you have good quality tires and a full suspension bike you shouldn't need to mess with the tire pressure. However, thanks for the informative video.