Dylanmtb Posted July 7, 2023 Share Hi all, Ex roadie here. What is the recommended Tyre pressure for mountain biking? I'm on 29 inch wheels,tubeless . Pretty rocky terrain where I ride. I'm 110kgs on a good day. I found a online calculator that mentions I should have 2.3 bar on the front and 2.4 on the bike. Look forward to everyone's responses Link to comment Share on other sites More sharing options...
El Duderino Posted July 7, 2023 Share 24 minutes ago, Dylanmtb said: Hi all, Ex roadie here. What is the recommended Tyre pressure for mountain biking? I'm on 29 inch wheels,tubeless . Pretty rocky terrain where I ride. I'm 110kgs on a good day. I found a online calculator that mentions I should have 2.3 bar on the front and 2.4 on the bike. Look forward to everyone's responses Sounds about right. Would go 2.5 at the back if you riding fast in rocky terrain or doing drop offs. Dylanmtb and DieselnDust 2 Link to comment Share on other sites More sharing options...
Dappere Posted July 7, 2023 Share You can probably get away with a bit less if running an insert, 2.3 Front and 2.4 Back sounds about right. Link to comment Share on other sites More sharing options...
Murrob Posted July 7, 2023 Share Sounds a bit high to me, but there are a bunch of variables to take into account, ID of your rim, your weight, bike weight, tire dimensions etc. The sram app helps to narrow it down https://axs.sram.com/guides/tire/pressure ChrisF and splat 2 Link to comment Share on other sites More sharing options...
dasilvarsa Posted July 8, 2023 Share 2.3 Back 2.0 Front for Gravel 2.1 Back 1.8 Front for Trails Gauteng Link to comment Share on other sites More sharing options...
Chadvdw67 Posted July 8, 2023 Share I am 105kg and ride fairly hard, and make questionable line choices at the best of times, I am running 1.5 in front and 1.7 at the back, Pirelli Scorpion enduro casing tyres no inserts, and it works really well, for me at least.... Fubar 1 Link to comment Share on other sites More sharing options...
love2fly Posted July 8, 2023 Share I weigh 110kg and ride on Maxxis 2,35's with 26mm internal width rims. I can ride as low as 1.1 and 1.6 but trying to get used to 1.8 and 2.5 Edited July 8, 2023 by love2fly Link to comment Share on other sites More sharing options...
BigToe Posted July 8, 2023 Share If you are unsure .Start at 2bar at the back and 1.8 in front and go from there....you won't end up far off that pressure. Jako De Wet and Fubar 2 Link to comment Share on other sites More sharing options...
splat Posted July 8, 2023 Share 15 hours ago, Murrob said: Sounds a bit high to me, but there are a bunch of variables to take into account, ID of your rim, your weight, bike weight, tire dimensions etc. The sram app helps to narrow it down https://axs.sram.com/guides/tire/pressure That is a great tool because it shows how many variables there are in the equation. The tyre casing makes quite a big difference, and I find it hard to interpret some of the marketing mambo about suppleness vs toughness vs puncture protection etc. ChrisF 1 Link to comment Share on other sites More sharing options...
V18 Posted July 8, 2023 Share 125kg here. 1.8 front and 2.0 back with vittoria airliner in back. Volumes 2.35-2.5x 29er. I ride rocky stuff occasionally irresponsibility fast. Tyre casings are wtb tough casings. So like spez blckdmnd or maxxis dd. Link to comment Share on other sites More sharing options...
love2fly Posted July 9, 2023 Share At the end of the day, find what works best for you. I used to ride my front at 1.1 and am still trying to get used to the rattle effect at about 1.5 to 1.8... I also always struggle for front grip in loose sandy situations but I guess that's par for the course Link to comment Share on other sites More sharing options...
MrJacques Posted July 9, 2023 Share It depends on your weight, riding discipline, terrain and tyre volume. You want enough compliance without risking damaging the rims or tyres rolling sideways too much. I think it's going to be personal and you'll need to experiment to find the right pressure for your setup. Less weight = less psi needed Rougher terrain = more psi needed (so you don't damage rims) Tyre inserts = less psi needed Higher volume tyres = less psi needed Link to comment Share on other sites More sharing options...
Robbie Stewart Posted July 9, 2023 Share On 7/7/2023 at 5:08 PM, Dylanmtb said: Hi all, Ex roadie here. What is the recommended Tyre pressure for mountain biking? I'm on 29 inch wheels,tubeless . Pretty rocky terrain where I ride. I'm 110kgs on a good day. I found a online calculator that mentions I should have 2.3 bar on the front and 2.4 on the bike. Look forward to everyone's responses What trail types do you ride? What style of riding do you do? I.e. marathon, enduro, jumps? I'm 125 kg on a full suspension with 36mm inner width rims. I ride around 1.9 bar back and 1.7 bar up front on 2.50" tyres with no inserts on variable trails including stock standard single track, enduro tech and flow lines with intermediate jumps. My tyres last, my rims are good and no spokes have broken in 2 years of riding on these wheels. Link to comment Share on other sites More sharing options...
dardo82 Posted July 10, 2023 Share The scientific way to work it out is to decrease the tyre pressure until you can feel the rim hit the ground over a jump or rocky section, then take this pressure and add 0.2bar. dasilvarsa and Zebra 2 Link to comment Share on other sites More sharing options...
Gr3mlin131 Posted July 10, 2023 Share 19 minutes ago, dardo82 said: The scientific way to work it out is to decrease the tyre pressure until you can feel the rim hit the ground over a jump or rocky section, then take this pressure and add 0.2bar. Tighten the bolt until it breaks, then half a turn back method? Definitely works, but might cost you a tyre or rim in the process. You did not mention your tyre width, mine are very narrow, 2.1 and 2.15. With just over 90kg I have not had any problems Just under 2 bar at the back, 1.8 at the front. Feels quite rough so might eeven be able to drop it a bit. But I am only doing light trails/gravel. Disclaimer, mostly roadie, so add the required amount of salt to the answer. Link to comment Share on other sites More sharing options...
splat Posted July 10, 2023 Share 30 minutes ago, dardo82 said: The scientific way to work it out is to decrease the tyre pressure until you can feel the rim hit the ground over a jump or rocky section, then take this pressure and add 0.2bar. Do you mean the NON-Scientific, Trial and Error way ? Sounds expensive... thinusjvrs and Zebra 1 1 Link to comment Share on other sites More sharing options...
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