PSI/Bar for Tubeless MTB tyres?

[Crazy88]

Hi Guys,

 

What should my tyre pressure be on a set of tubeless? I weigh about 57kg.

 

Thanks

[Cat2forLife]

Most tire companies recommend no less than 2 bar or 1.8 bar. Should you ride it any lower than that, you will have no warranty and no foot to stand on should something go wrong like the tire coming off the rim etc.

 

But you are quite light and I am well aware that there are many people riding at about 1.5 bar F+R who weigh around 70 odd kgs.

 

I myself weigh around 70kgs, but I never ride less than 1.8 bar.

[Crazy88]

Most tire companies recommend no less than 2 bar or 1.8 bar. Should you ride it any lower than that, you will have no warranty and no foot to stand on should something go wrong like the tire coming off the rim etc.

 

But you are quite light and I am well aware that there are many people riding at about 1.5 bar F+R who weigh around 70 odd kgs.

 

I myself weigh around 70kgs, but I never ride less than 1.8 bar.

Thanks! I'll keep at 1.8 to be safe

[V12man]

Thanks! I'll keep at 1.8 to be safe

You can ride lower - but at low pressures not all pumps are even close to accurate - compare yours to a quality digital gauge to try understand the error and account for it on your pump.

 

My Parktool pump for instance over reads by 0.4 bar - which turns into a mess if you want to ride 1.2 bar for instance, unless you know about this and make a suitable adjustment.

[Crazy88]

You can ride lower - but at low pressures not all pumps are even close to accurate - compare yours to a quality digital gauge to try understand the error and account for it on your pump.

 

My Parktool pump for instance over reads by 0.4 bar - which turns into a mess if you want to ride 1.2 bar for instance, unless you know about this and make a suitable adjustment.

Thanks, I use a Joe Blow floor pump so am sure the accuracy is not 100%

[openmind]

What should my tyre pressure be on a set of tubeless? I weigh about 57kg.

 

 

Rule of thumb - lower than you think. Keep going lower until it gets squishy. 

[Christofison]

Stan's NoTubes suggest you use this formula to find a starting point and then tweak to personal preference from there. Convert your weight(fully kitted up) to pounds(lbs) and divide this by 7. This gives you a number for your tire pressure in PSI. Then -1 for the front and +2 for the back.

So start at 20psi on the back and 17psi on the front if you weigh 57 with all your gear on.

I run slightly harder than normal because I ride rocky areas, aggressively and have dented my rims a few times.