Pressure for Tubeless Tire
08-22-18, 09:42 PM
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Pressure for Tubeless Tire
I have the original tire (with tube) and the psi recommendation is 25-50. Typically I put the pressure to 45 psi. Recently I change it to tubeless with the same tire. My question is, can I still put the pressure to 45 psi with this tubeless setting? I heard from people that I should only go up to about 30 psi. I tried but feel like the bike not having enough pressure. Appreciate any input.
Andi
Andi
08-22-18, 09:50 PM
#2
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As long as you're not putting in more than the max pressure printed on the sidewall, put in whatever pressure you like.
...but a big part of the draw of tubeless is being able to run lower pressures.
...but a big part of the draw of tubeless is being able to run lower pressures.
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08-22-18, 10:08 PM
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I am new to this mountain biking business .. what is the advantage of running lower pressures, like 30 vs 45 psi on this case. My bike's wheel is 27.5. The main reason I changed to tubeless is to have more prevention against flat tires.
08-23-18, 04:26 AM
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I have the original tire (with tube) and the psi recommendation is 25-50. Typically I put the pressure to 45 psi. Recently I change it to tubeless with the same tire. My question is, can I still put the pressure to 45 psi with this tubeless setting? I heard from people that I should only go up to about 30 psi. I tried but feel like the bike not having enough pressure. Appreciate any input.
Andi
Andi
For any meaningful PSI suggestions, we need to know (at a minimum) how much you weigh, and the size of the tire (width).
08-23-18, 06:05 AM
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It is up to your feel and the max pressure rating. There is no right or wrong. I use 27.5x2.25 on a XC hardtail and even on the most rooted rocky hiking trails I tend to like higher than average like 35-40. For regular singletrack I could go higher. I've recently rolled on Conti Trail Kings and WTB Bee Lines. Me, bike, and all carried (water, bag, phone, snacks, tools etc) is about 220ish.
Last edited by u235; 08-23-18 at 06:24 AM.
08-23-18, 06:07 AM
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It also increases traction by letting the tire conform to the terrain.
Too low and you start having pinch flats or rim strikes. Or the tires start folding over on hard cornering, or off camber terrain.
08-23-18, 06:27 AM
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i'm a light rider 125lb but my 27.5s x 2.35 i run 20-25 tubeless over 30 and it gets bouncy unless you're on really smooth groomed park trails or something
Last edited by Jakedatc; 08-23-18 at 08:59 AM.
08-23-18, 06:46 AM
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If people want to give useful psi information based on what works for them, say how much you weigh and the WIDTH of the tires. The wheel size (26, 27.5, 29) is nice to know, but about 1/10 as important as the tire witdh measurement.
Tire width (which is basically a stand in for volume) and rider weight are the two biggest determinants of ballparking what the optimum psi is.
There are other important factors like terrain, riding style and casing construction, but let’s start with baby step.... weight and tire width.
Tire width (which is basically a stand in for volume) and rider weight are the two biggest determinants of ballparking what the optimum psi is.
There are other important factors like terrain, riding style and casing construction, but let’s start with baby step.... weight and tire width.
08-23-18, 09:56 AM
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If people want to give useful psi information based on what works for them, say how much you weigh and the WIDTH of the tires. The wheel size (26, 27.5, 29) is nice to know, but about 1/10 as important as the tire witdh measurement.
Tire width (which is basically a stand in for volume) and rider weight are the two biggest determinants of ballparking what the optimum psi is.
There are other important factors like terrain, riding style and casing construction, but let’s start with baby step.... weight and tire width.
Tire width (which is basically a stand in for volume) and rider weight are the two biggest determinants of ballparking what the optimum psi is.
There are other important factors like terrain, riding style and casing construction, but let’s start with baby step.... weight and tire width.
08-23-18, 08:02 PM
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I should have been more specific. I am 165 lbs, bike weight is about ~30 lbs. Tire width 2.3" (58 mm) and wheel size 27.5. Specifically my bike is Specialized Pitch Expert. I am riding mostly flowy trail and sometimes technical trail with some rocks and occasional roots. Thank you in advance for the input and feedback.
With tubes I was running 24-25 front and 28-30 rear. Tubeless I run 23-24 front, 27 rear..
08-24-18, 09:47 PM
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Thank you for the info, I will try that.
08-26-18, 08:40 AM
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I'm still experimenting with the pressure. Right now I'm between 23-25, probably looking at either 23 or 24. I'm on a 29 2.3 front/back. I weigh about 158/160 with pack.
