What is the correct tyre pressure?

This article provides PSI (tyre pressure) by model

Model* Front Tyre (PSI) Rear Tyre (PSI)
NKD street setup 32 34
NKD off road setup 30 32
Arthur (all models) 32 34
X1 32 34
Fz / S1 28 32
*Carrying heavy load increase slightly the PSI  + ~1 + ~2


Your tyres will have wear indicators, which look like little bumps at the bottom of the main grooves.

When the depth of the rubber remaining gets to the level of the wear indicators (1.5mm), the tyre has reached its legal wear limit and must be replaced.