How To Find Your Perfect Tyre Pressure | Hard Vs Soft Tyres
ฝัง
- เผยแพร่เมื่อ 17 มิ.ย. 2024
- Are you struggling to find that perfect psi for your tyre set up of choice? You're not on your own... there are a lot of variables to factor in! Rider Weight, tyre width, tyre casing, ground conditions, personal preferences, the list goes on! Martyn's got a guide to help you through it all 👍
Subscribe to GMBN: gmbn.eu/subscribe
Get exclusive GMBN gear in the GMBN store! gmbn.eu/WX
Tyre pressures tend to be a variable, is there ever really a perfect pressure for all conditions?! Well some riders think so, others swear not, so the jury's out! Still, knowing your perfect baseline setting that really works for you is super important, so give it a go!
If you'd like to contribute captions and video info in your language, here's the link 👍 gmbn.eu/WW
Watch more on GMBN...
Set up for Enduro Racing here: gmbn.eu/MTBendurosetup 📹
Submit your content here:
upload.gmbn.com/
Click here to buy GMBN T-shirts, hoodies and more: gmbn.eu/GMBNShop
The Global Mountain Bike Network is the best MTB TH-cam channel, with videos for everyone who loves dirt: from the full-faced helmet downhill mountain biker to the lycra-clad cross country rider along with everyone and anyone in between.
With the help of our pro and ex-pro riding team we’re here to inform, entertain and inspire you to become a better mountain biker, including videos on:
- How to ride faster with expert knowledge
- Fix everything with pro know-how
- Ride anything with world-cup winning skills
- Dial in your bike with bike set-up advice
- In-depth entertaining features
- Chat, opinion and interact with us on the Dirt Shed Show
Welcome to the Global Mountain Bike Network | Covering Every Angle
Thanks to our sponsors:
Canyon bikes: gmbn.eu/Canyon
Nukeproof: gmbn.eu/nukeproof
SCOTT bikes: gmbn.eu/SCOTTbikes
Chain Reaction Cycles: gmbn.eu/chainreactioncycles
crankbrothers pedals: gmbn.eu/crankbros
crankbrothers seatposts: gmbn.eu/8b
Exposure lights: gmbn.eu/exposure
Continental: gmbn.eu/Continental
POC helmets and eyewear: gmbn.eu/POCsports
Topeak: gmbn.eu/topeak
WD40: gmbn.eu/WD40
FSA: gmbn.eu/fsa
Ergon: gmbn.eu/ergon
Park Tool: gmbn.eu/ParkTool
Northwave: gmbn.eu/Northwave
Camelbak: gmbn.eu/camelbak
Douchebags: gmbn.eu/Ly
TH-cam Channel - gmbn.eu/GMBNsubs
Facebook - gmbn.eu/GMBNFB
Google+ - gmbn.eu/GMBNGplus
Twitter - gmbn.eu/GMBNTW
Instagram - gmbn.eu/GMBNIG
GMBN Shop - gmbn.eu/gmbnshop
GMBN Tech - gmbn.tech/subscribe
GCN Tech - gcntech.co/subscribe
EMBN - embn.me/subscribe
Leave us a comment below! - กีฬา
Do you know your "Go To" Tyre Pressures?
About 15 front and about 18 back, depending on conditions
Global Mountain Bike Network 23 psi at back and 20 at the front
The video was a good start, but what about accounting for tire volume differences (both tire size and rim diameter). You're going to be running a lot higher pressure in a 2.1" XC tire than you are a 2.6 trail tire, or a 3.0" plus tire.
I'm currently running 27.5 x 2.6" Specialized GRID casing tires (Butcher front, Purgatory rear) on 31mm rims and I'll run anywhere from 19-22 psi in the front and 20-24 psi in the rear, depending on weather, trail type and conditions. I weigh 180 lbs and riding a Whyte T-130RS.
i run 20 psi front and rear
Harvey Watt do you run tubeless or not?
Who always checks his pressure by hand ?
Lol, the legit master mechanic at my last big event (take your kids mountain biking day over 300 kids plus all the parents) Was checking tire pressure is by hand and was within one psi every time I saw someone double check him and verify it with a gauge
liquidwombat that’s crazy!
Squeeze test always best, ha
Used to, thought id never stop but then i won a Fabric gauge from GMBN, so now i use that.
I do. Haha
Thanks I sure appreciate everything you guys do. They have had the wheels three times trying to get them to seat.
Great video. Happy to see GMBN getting back to the shorter but informative videos.
Weight divided by 7 gives you a great starting point. Then plus or minus a psi or two. Also rear usually needs 2 more psi than the front. Im 175lbs and run 21 front 23 rear.
Had to convert all to metric. Formula still works.
I’m 120lbs
@@hermask815 How does it work in metric? 90 kg / 7 is 12,5 atmosphere, little too much?
Snap.
Turns out the pressure I've been running fits your formula.
Thanks for the knowledge.
@@NecumNaTo hahahha I wanna see a tyre pumped to 12.5 atm :D
That was great. I've been wanting to see a video just like this for years.
Tire casings make a bit difference too. For instance I am 163 lbs and ride a hard tail. When I run Racing Ralphs, hard pack I am running 22.5 front and 25 rear to 27 rear depending on the course and how twisty and rough. In sandy/loose 21 F and 23 Rear. However, Nobby Nicks on the same bike are 19 F, 20 R for most riding, or 17.5 front 18.5 rear for loose and rooty trails. That's a substantial difference between pressures and even with the lower pressure in the Nics, they still feel firmer, but much less pressure on a big hit and I feel the rim.
Thank you very much!! Always a question I have
This was a really good video, good job Martyn.
Thanks for the info, I try a few different tire pressure. 26 rear 24 front on 29's it also helps to start out on spec and go down on your psi until one feels comfortable going up and down hill I'm a trail rider so that's how I started out.- Utah Rider
Rapid robs I was running 30/35 psi front to rear all year round they felt great for speed and grip I’m currently running dhf/r2 and running 30/30 psi and the grip advantage is amazing I didn’t think it would make much of a difference but it does hope this helps out a newbie somewhere in the mountain bike world 👍🏻🤘🏻
Tank you for also showing the pressure in Bar:D
Good guide Martyn!
Lol
How much do you weigh doddy? You look about the same size as I am, and I am running 30 in both my front and rear.
Can you do this with e-bikes
I hope it's the same person responsible for both TH-cam accounts. :D Mirror high-fiving like a champion! :D
So many factors in tire pressure outside of trail conditions (temperature, rim width, 27.5/29, tire width, tubeless/tubes). On 20mm inner width tubeless 29'ers, with a 2.35" tire in the front and a 2.2" in the rear, at 67 degrees fahrenheit inside I currently set up 20 psi in the front and 24.5 psi in the rear. Very happy with front pressure, still messing with rear pressure (will lower in 0.5 psi increments and see how I like). Of course as it get colder who knows...I'm likely actually running a lower pressure as it's not quite 67 degrees outside and is getting colder
Amazing change! Thanks! I was riding 40psi F/R, changed to 30/28...grip improved dramaticaly, although it feels weird when cornering. I ride a very dry and hard packed terrain, with some rocks, cactus and sand pits, I am 1.89cms and 97kgs.
Try 24 psi front and 26 psi rear, should be interesting.
Yo, I’m 155lbs and my go to number are 20 PSI front and 23 PSI in the rear. I’m running a minion DHF WT in the front and an aggressor WT in the rear. Both tires are 2.5 on 30mm ID rims. I’ve been messing with pressures on this tire combo for about 8 months and I can say that I feel like I have maximum grip and a boat load of confidence in the corners -especially the flat corners with these pressures. ✌🏻
Good explanation Martyn!!
I run 17 psi on the front, 30mm inner rim with maxxis minion dhf 2.5wt and 23/24 psi on the rear 30mm inner rim maxxis agressor 2.3 Of course tubeless, my terrain was rocky and very dry, Im 86 kg and run a 140mm front & rear 2016 Canyon Spectral.
Awesome video!!! Definitely helpful to some people to get an idea. If anyone is my size about 5'10 200 pounds and I wear full gear since I do more enduro/freestyle type of riding and parks. I'm at 28 psi in the rear and about 25 psi in the front. Dont forget the weight of gear you where and if your wearing a hydration backpack or fanny pack.
Hi Martin, I am an Arizona rider so mostly dry conditions loose over hardpack, I weigh with gear about 155lbs, I am riding a 2016 Giant Trance SX 27.5 wheels 30mm internal, Maxxis Rekon 27.5x2.6 front and rear tubeless using Stan's, I run 13psi in the front and 22psi in the rear and have had no issues. Recently rode the Whole Enchilada and Hy Masa Captain Ahab loop in Moab Utah using the same psi in the front and rear and had a great time and no issues, and the same great results in Sedona Arizona. My skill level is average.
27.5 x 2.8 tubeless Minion DHF front and rear with EXO casings and I'm at 19-20 front and 22 psi in the rear. I weigh around 230 lbs and this is my overall favorite setting for most of my local trail conditions! Bike is a Kona Big Honzo hardtail.
Very useful information Martyn, I am a heavier rider and need to tune my tire pressures in, this should do the trick, Thanks! Oh, digging the Brian Kennedy sticker also!
Great topic. I ride in Utah and there s a lot of rock coupled with slick gravel sprinkled on hardware . Default is 22 front and 25 back. If not too rocky, I drop to 19 and 23 and love the grip. If very tech and rocky I go up to 24/26, but not often. 29’r full suspension with 2.4 Bontrager X-R 4 tubeless. Weight 185 lbs. Haven’t had a flat in two years of frequent riding.
Great video I rock crawl with Jeep it’s all about tire pressure I run 7-10 psi going up loose gravel or slick surfaces. Same on a bike. Just not as low.
Hello, great video . I used 30 psi in both tires of my HardRock sport Specialized 26R.
Also keep in mind temperature. Air pressure in tire will change if you inflated it in room temperature and outside is much hotter or colder. Just google "Cold inflation pressure" and go to wikipedia page, there is table with pressure and temps.
Great guide Martyn.
My go to pressure is 15.5/18.5 psi. Running 29x2.25 and I'm only 125lbs. Using a digital pressure gauge helped so much!
i usually go for 50 psi/ 4 bar because i commute over asphalt and dont want rolling resistance
I'm glad that I'm not the only one, got a little bit scared when I heard from 20 to 25 psi since I usually ride from 50 to 55. 😱😂
I ride almost with 40 psi on the rear and over 30 on the front, not tubeless
I do between 35 and 40 PSI. It seems like in mountain biking, people try to run the lowest possible pressure.
I run 50/50 on my dirt jumper. Being new it’s all trial and error for now. I weigh 190lbs and 6ft 6in. Maybe someone can direct me a lil. 50 seems a lot though
Sometimes I run 0 PSI, the grip is insane!
Hey , I ride lots of urban freeride so I decided to ride 3,2-3,5 bar and I'm very happy with it .
I’m running tubeless, 27.5”, and weigh 68kg. I generally run 24psi front, 26 rear. That works for most of my riding. I generally ride enduro, and love the downhills too.
Daniel probably the best all around setting point for me. 2.5s front and rear
I weigh 155lbs and on a Salsa Deadwood (120mm travel front/91mm travel rear) I am running 29x 2.5 Minion DHF front at 17psi and Aggressor 29x2.4 rear at 17 psi (both tubeless on 35mm ID rims) and I really like it. I experimented with going higher (up to about 25 psi) but I felt like I was bouncing off roots and rocks more. This seems to be my sweet spot.
I've just gone tubeless 2.3 maxxis high rollers and run 30psi feels pretty good.
Thanks Martyn for sharing that information mate. With you talking about all these pressures like 22 and 23 psi I'm assuming I need to get on the ball and get myself a good tyre pressure indicator. I'll certainly enjoy playing around with my pressures mate, anything to get out on the bike is good :)
Tubeless only here with cushcore in the rear and a 215 lbs + lbs rider (depending on gear I have strapped to me) I find 28psi front (2.5 maxxis DHF exo casing) and 30 psi rear (maxxis 2.5 aggressor with cushcore DD casing) on 30mm rims. It works for me, and have no problem finding grip. Especially since in hard cornering I tend to exit while steering with the rear tire (hence the cushcore).
Altitude actually has a huge effect on tire pressure. When doing a large >3k ft decent, tire pressure will actually be several PSI lower at the bottom of the trail than it was at the top. This can lead to pinch flats or rim damage if not careful.
Loving the background music Martyn
I dont know where ive read this, but somewhere some Guys from an University did a test! I've always thought that higher pressure rolls faster! Well, this is true on very good Streets whitout any bumps, but even on really fine gravel fire roads this is not the case anymore! A lower pressure will have less rolling resistance because its not bumping around and shit! I really don't know how to explain it! Obviously there is a sweet spot for that also, because if you go to low the tire starts dragging as on normal streets! Great guide Martin, tire pressure is really a thing that has so much factors and you need experience to find out your perfect one! Cheers, Christoph!
Tyre pressure will vary due to tubeless set up against tube set up and if you jump stuff with tubes and low pressure , risk of flatting. Easier with tough casing tyres to run lower pressure tho.
Sometimes I run 0 PSI, I've got insane grip
facts everyone doesnt know this secret trick that would benefit everyone
Yeah because I really love riding around on flat tires. But hey who am I to tell someone else how to ride a bicycle.
Great video, I ride 23 front 21 back. Front range of Colorado (Golden). If climbing loose rocks (Like parts of green mtn) I drop a PSI in the rear to reduce tire slide.
Is this is a coincidence or #gmbn knows what I'm looking forward for 👏👏👏 hats off great video !
I go with 25 on both side
That'd be a segueway you're riding then 🤣
I like those videos where Martyn explains things with more scientific words, and how things really work! It’s interesting!
Thanks again gmbn 👍🏼😘
On my old 27.5 XC hardtail I typically rode on about 28-30 F and 30-32 rear, (2.2” width) which typically worked for me. On my new enduro rig, still 27.5 I run 18-20 F and 22-24 rear on 2.4” F and 2.3” R Maxxis minions. I weigh 65kg and seems to work pretty well for me. Normally pretty dry conditions where I live
Why nobody mentiones the difference between wide and thin tires? Cause there's a difference between 2.2 vs 2.6 at 25 psi for example...
Yeh I run 2.8 and 20psi is pretty hard
I discovered this too! I recently changed to 2.35 width and left the psi at 30 which was rock hard and when I brought it down to 20psi it really helped!
Yes and no. GCN actually did a bit on this with road tires. They found wider tires were faster on rough terrain because of their "suspension" properties at lower pressures. However, at the same tire pressure as the thinner tire, they lost all benefits of suspension and we're merely rolling on a bigger tire.
When comparing tire size & pressure you no longer want to compare by PSI but by tire tension. Changing the tire size means you must change your PSI to get the same tire tension. General rule of thumb bigger fatter tires can use a lower psi to get the same riding dynamics of a narrower tire with a higher psi.
Also thin rims needs higher tire pressure for same tire to not flex to much when cornering...
when i converted to tubeless i filled 2.1 bar in each tyre. then i just let it roll for a few weeks, feeling more and more comfortable and finally feeling that i needed to pump the tyres up again. they where at like 1.4 bar at that time, so i filled them up to 1.75 bar, perfect! almost exactly what he sais right here ^^
Great video!
Thank you GMB
I'm a big boy - nearly 19 stone - I ride with 35 psi in the front and 40 psi at the back end! As previously mentioned I am a lump of a lad - works for me though :)
dan parry I am a hair under 18 stone and really appreciate you weighing in on this (see what I did there?) from a big guy's perspective. Thanks!
Thanks for mentioning about weight coz I am 97 kg and I also run similar pressures on my 27.5 hardtail. I find that a comfortable compromise on most tracks and it depends on the weather too. I'm running smart sams 2.2 front and rear.
I'm 240lbs, 109kg or 17 stone, on a 29er tubeless full suspension trek fuel ex 7. I run 32 psi in back and 30 or so up front. We ride a lot of rocky terrain in Colorado. With tubes, I had to go higher psi. But it also has a lot to do with riding style. Standing and steering better on downhill sections rather than bashing through them while sitting down makes a difference.
@@billc7211 I am also in Colorado (Front Range). I will take your advice into account as well since we both likely hit some of the same trails. Thanks!
130kg, and I _never_ run less than 35 on my 26er. 40-ish is my sweet spot, feels rock hard to the hand but squishes just right when I'm riding.
Damn, I've been riding on 2.1-2.3 Bar for over a year now because I thought thats what you do^^
Got to change that for my next ride and check if I can improve my skills :)
17psi front and 18 rear works for me with my + sized 27.5 /3inch tyres on my Specialized Fuse hardtail 🤘🏼
Hammer
13/14 same ride
Not a single word about tire width. Holy hell, rider weight AND tire width are the most important factors to consider. BTW 84 kg give or take, run around 26 psi front and 29 psi rear on 2.25" tubeless tires.
Souhlas
20 psi front, 24 rear, . 2.4 tires on trail bike :)
My 29er full suspension came with the WTB Prowler SL 2.1 inch tires with a recommended low of 35psi which is hard as a rock and almost no flex or grip. Maybe that number is for roadies, no offence. I gradually lowered them to my sweet spot of 25psi rear and 23 in the front. I am running tubes and they are nowhere near coming off the rims or pinching. I ride fairly hard on rocky rooty rutty stuff but rarely get more than 2 feet off the ground. My max speeds on such terrain rarely exceeds 26mph, usually under 20mph, probably average about 12mph. If I jumped much higher than that it may become an issue but I try my best to keep it on the ground most of the time. Great vid, keep up the good work.
I like 24 rear and 22 front! Tubeless Maxxis DHF's.
NorCal Trail Rides how much do you weigh?
I’m 86kg (190lbs) on a Scott Genius with 29” wheels riding in Southern California where it’s loose over hard most of the time and I run Maxxis tires (DHF 2.6 in the front and DHR II 2.6 in the rear) with 25 psi in the rear and 24 psi in the front. 25 psi is sort of the magic starting point for me at my weight and riding style (I like to go as fast as possible down hill). Good luck...Cheers!
I’m running a tubeless setup with 27.5/2.8 I weigh 185 and ride mostly high desert, loose over hard pack, dry and dusty. My go to pressure:
Rear - Rekon 17-18psi
Front - DHF 16psi
Great ride. Great grip. No flats!
24 psi front 27 rear for my 'default' pressure on my trail bike, then a few more like 26/29r on my DH bike!
Rider weight and tyre size are probably the biggest factors in finding the right baseline tyre pressure (I'm surprised they weren't mentioned earlier in the video)
Personally, I ride 26ers and run 2.25" to 2.35" tyres at about 25 PSI Front and 28 PSI Rear. I might go couple of PSI less in wet and/or muddy conditions for more grip (although I still run inner tubes so I don't like to go too low because of the risk of pinch flats), but for dry trails I might add a few PSI depending on the surface.
Number 1 take-away rule (again should probably have been mentioned in the video) don't just blast your tyres up to whatever it is they say on the side of them, because most will probably say something like "30 to 60 PSI"
I have thick sidewalls and run 35 psi in both front and rear, I'm riding a downhill bike but don't use it to race as much, I use it for jumps and have a harder tire pressure tends to not deform as much on the lip of a jump as much as normal tire pressure, I like running this set up because when you dabble in freeride you tend to like to roost a lot and having less traction with more tire pressure is kind of fun
Brilliant!
Same go to pressures as dodgy doddy. I weigh 100kg. Rear pressure is set to save tyres and rims (can drop to 26 on smoother surfaces or go up to 30 if riding fast on square edge rocks) front starts at 24 and drops to 22 or goes up to 25 in rocks. I always use dual ply casings or equivalent. I've been racing dh since the 90s and enduro since it was invented. When I'm down at 90kg I drop pressures more. A Digital pressure gauge is great!
Stan's No tubes site has a handy chart based on rider weight. I think it's spot on.
I'm 250lbs and found I really need a bit more air for climbing efficiency. Went up a bit more than I thought I'd need (around 30) but climbing is much easier and cornering is still good. Had to find the sweet spot between that.
Funny that just got back from Halfords after they fixed my bike my tyres where at like 100 psi
I looked mega Dogey letting them down in the car park at half 6 in the evening
What type tyres though?
I run tubeless 27.5"+ and I use 22 psi up front and 28 psi at the back
Here's a tip I once got that have worked fine for me on any type of bike, except for riding velodrome track: Place your bike on a flat hard surface (floor). Inflate your tyres to the max recommended pressure (usually found on the sidewall of the tyre). Get a piece of paper, stand it on the edge on the floor at the contact point between tyre and floor and make a mark on the paper where the transition from tyre to rim is. Divide the paper, from standing edge to mark in eight equal parts (fold it in half three times). Do this for both front and rear. Then mount the bike (in riding position) and have an assistant let out air of the tyres until they have both sunk one eighth of fully inflated height. Dismount your bike and measure the pressure. This should give you the optimal starting point for experimentation.
GDay guys,
Thanks for this great video. I’m just getting back into the sport and this was really helpful - until you said the bit about “unless you are a heavier rider”. I’d class myself as that, at 110 kgs, but do you? What is heavier, and at what tyre pressures should someone at my weight start playing around at?
Cheers
Hi Mike. I myself am a heavier rider at 106 kgs. I have been riding for a few months now, but I have been running around 35 + or - psi, and that has seemed to work pretty good so far.
I ride a lot of slat & rocky trails but found running low P.S.I in my tyres was not good. I ripped the side wall out of 2 rear tyres on the same single track with 26 P.S.I to get the grip so i now run a vitoria airliner in the rear & run anything from 26 P.S.I to 30 P.S.I in the rear depending on the trail i am riding. in the front i stay with 28 P.S.I & as I am 100 KG with all my kit on it works for me.
Im running 26" x 2.0 Maxxis Ranchero, no tubeless, my weight is 70 kg, my all terrain pressures are 35 psi front - 40 psi back. I generally ride XC
I use 26" x 1.95" on an XC Hardtail, my weight is about 60kg and I run 45-40 for XC, 50-45 for road use and 40-35 for trails. If it is too muddy or too wet Itend to wait for the next day to dry it out
27.5 x 2.6 tyres. 20psi front 22psi rear.. perfect for my local trails. Absorbs all the fine stone and gravel chatter. 160mm travel deals with the rest.
On my 27.5+ aggressive hardtail, I have got front 14psi and back 15psi, and It works great.
Rok Krumpestar whats your weight?..
@@hobidolap round 73kg
Oh jesus
When i had a plus bike i had 6 psi front and 9 psi back. But i way only 60 kg and here where i live there is only xc type trails.
I couldn't keep my rear inflated and on the rim below 23psi even when taking it easy
Very helpful
100 kg rekon 2.8 I ran them at 25 lbs today on a loop trail. Then 35 lbs same loop. Much faster overall with the comfortable higher pressure. The lower pressure felt like I was slower and expending more energy, but several of the trail sections were faster on the lower pressure.sandy and hardpack trail conditions. Will run 30 lbs tomorrow and I'm guessing that's the magic number
I weigh 190 lbs with a riding pack and run 24 psi in my front tire and 26 psi in the rear. This is a tubeless setup on dry trails with 2.4 Bontrager XR4's installed on Bontrager line comp 30 wheels (29mm internal). Hope this helps!
Running Minions front and rear 29er front around 26psi and rear 28-30psi always feel pretty good in all conditions.
I run 24/27 typically, but also run 25/29 a lot. I'm a heavier clydesdale rider.I've experiemented with lower pressures but the bike was too squirmy and I even had a rear tire come off the bead before at 21 psi on a hard landing. Bike is a 2017 Remedy and I typically run a 2.5 Minion front and either a 2.5 minion dhr rear or a 2.4 bontrager xr4 rear.
24 psi front and 20 psi in the rear, tubeless with Victoria airliner in the rear to aid in reducing burping the tyre, have been known to go as low as 16
very good
loving the hotel lift jazz in the background
i run 6/7ths front to rear eg 18psi front 21 rear i maintain that split even on motorbike 36 f 42 r it is a great start point . If tyres are mismatched widths then all that goes out the window.
Maxxis High Rollers seem to be better at slightly higher pressures in general than Conti Trail Kings. I usually go around 27 to 30 psi in High Rollers and have gone as low as 20 psi in Conti Trail Kings (2.4 width though!). The conti's are slightly deeper in section too which allows the lower pressures. One other thing I check is leaning the bike over whilst stationery and pushing into the bike to check not too much sideways movement - especially of the rear so that you don't feel sketchy in berms and also if you're tubeless that the tyre doesn't burp losing pressure and or fluid. I think if you're riding at a high level - faster and therefore more down force then slightly higher pressures are the way to go to avoid flats especially important if you're an enduro rider.
Ok, so recently I’ve been riding a hardtail DJ and I noticed my tire pressure was sub-15 psi! This is a tubed setup and I’m surprised I didn’t puncture my tube. (My weight is 113 lbs) so I raised it to 25psi. I’m reconsidering and think I’ll go with a in-the-middle; 20 psi. This is for mixed trails of DH and XC (yes I know a DJ is terrible for both of those but I need to ride these trails to get to the dirt jumps😂
Very useful
40-65 PSI is the limit specified on my tires..I stay at 50/50..Feels GOOD!!!!
I'm 1.75m and 72kg. I run 1.7bar in front tyre and 1.8bar on the rear. Bike works perfect for me. Do a lot of long rides with trails and the odd occasions of ramps and drops. Never had a problem
Great info.
Question? Does width or tire volume dictate correct psi as well?
High Roller 2's. exo casing. Tubes. 28 rear, 25 front. Never had a puncture on the trail. I weigh a midges nut sack over 12 stone.
Riding natural lake District trails, trail centres, bike parks and sweet, sweet loam.
Bike: Santa Cruz Nomad 4
Rider weight: 72kg geared up.
Rims: Santa Cruz Reserve 30mm 27.5
Tubeless
Front: Maxxis Minion DHF 3C Exo TR Max Terra 2.5WT, Pressure 22PSI
Rear: Maxxis Minion DHRII Exo TR 2.4WT, Pressure: 25PSI
Usually not going under these pressures, if it is too rocky +1 PSI on the rear
I really think it depends on the trail\weight, if your ridding pebble/dirt/hardpack/roots lower psi can be okay. If you ride granite with gnarly pointy rocks running low pressure can lead to flats or worse rim damage. Also how aggressive you are can play a part.
On my Ibis 742 rims 35mm ID. Running rekons 2.8f at around 20psi and a 2.6 rear (due to rubbing with a 2.8 on a 17’Nomad) at ~25 psi. Works great but I haven’t really messed with other pressures too much. If I ride 3-4x a week I might only fill once a week so they steadily decrease over the week by a few psi
26 in rear........23 in front. I'm going to try 25R 22F. About 210 Lbs loaded up. Thanks for the info.
Tyre width makes a big difference too. Moving from 2.1 x26 to 2.35 29er I've dropped nearly 10psi. Less than 30 on the 26 would pinch flat all the time. 25 on the 29er seems a good start point. I think that the physics says doubling the width halves the required pressure
I tried lowering my tyre pressure incrementally and now have a dented rim. 26” wheels, HT, 170lbs, 40 psi.
I run tire inserts so that I can actually push my hardtail
Nice one
On a hardtail it is very important to go tubeless at least in the back if you want grip and reliability, with tubes you don't get that. (I ride on rocky terrain and very often get pinch flats in the rear even with 30 psi)
Depends on where you ride, if it's dry or wet but for 29er 2.3minions front and rear i run in the dry 30psi front and 32 psi rear, as long as i position my self correctly on the bike while cornering. It gets too hard to peddle up hill at my local park if i go any lower (and there is a shit load of hills on the trails put some decent sized jumps/drops. I'm 85kg. For riding on the road /bikepath/footpath aka sealed surface i go up to 45psi front and rear.
I’ve got a trek stache with wtb ranger tcs tough 3.00 tires on tubless setup, with 140mm air fork. I’m running 15.5psi in the rear tire and 16.5psi in the front tire
Thank you so much for making this video. I am brand new to mountain biking and have a starter bike that isn't so great. I can't feel the difference yet between different pressures. I am looking for a general guide of what I should set them at until I can really start to feel a difference. Also my tire says a minimum of 30psi. Would you still try lower? Thank you for your help :)
20 psi front and rear. 26’ running dhr and high roller II. Maxxis freeride tubes, that’s right, tubes. Tubes are 3-4 yrs old. Couple pin hole patches but never an issue. Ran psi for years by feel before putting digital gauge on it. If it aint broke...