Should say max pressure on the side which will be to high lol, goto there website and see if they have listings. If they are usual 180/55-17 , 120/70-17 then I use 32 f and 36 r, on my S4r with michelin pilot powers awesome tyres.
I find its best to use the same gauge each time and stick with a constant pressure then u know how they will react in a given situation
