Tubeless tyre pressure

Something i don't think enough people re-enforce is the correct tyre pressure to use when running tubeless.The clever blokes over at Stans quote this on the matter :

To determine a starting tubeless tyre pressure when running a ZTR rim use this simple formula: Rider Weight in pounds divided by 7 = x x - 1 = Front tyre pressure in PSI x + 2 = Rear tyre pressure in PSI

Example: 185lb rider (13 stone or 84kg) 185/7 = 26.4 Front tyre pressure: 26 - 1 = 25 PSI Rear tyre pressure: 26 + 2 = 28 PSI

Their road pressure recommendations are listed below and this is ONLY with an appropriate Road Tubeless tyre such as the Schwalbe 1:

< 60 kg / 130 lb = 5,5 bars / 80 psi

65 - 75 kg / 140 - 165 lb = 6 - 7 bars / 87 - 101 psi

> 80 kg / 185 lb = 7,5 bars - 8 bars / 108-116 psi

I would also recommend starting 10psi less than this and see how you get on (Stan says the same BTW).

For reference all Stans No Tubes rims carry a sticker stating their Max pressure, this does not apply if you put a tube in, in that case note the max pressure stated on the tyre.

If you have any query regarding pressure for other rim manufacturers then drop me a line and I'll fill you in with the necessary info.