Doe's anyone know what the presures should be i am running 18" wheels with 255-40-18 rear and 225-35-18 front thanks.

i ithink about 35

I would use 32 psi all round, but then thats me.....:rofl:

It is not the tyre size which is the only factor in tyre pressures. It is infact the shape of the wheel which also has a major factor in this, according to a local well established wheel and tyre shop.

 

Best way is to experiment, start them lower than you expected and go for a drive. Then increase them by 2psi and then go for a drive.

 

You know when you got it right as the car feels a lot sturdier.

32 front, 34 rear is stock. A Srrae says, experiement upwards from there.

 

(Im running 33 front , 35 rear on my 17's)

After Market Tyre Presures

 

Depends how much shopping you're loading in the back ;) :dance: :rofl:

It is not the tyre size which is the only factor in tyre pressures. It is infact the shape of the wheel which also has a major factor in this

 

uuurrrmmmmmmmmmm aren't they all round????

:tongue: :tongue:

dont seem to make any diffrence wot pressure i put in my tyres, i allways get more in the top than the bottom cos it looks flatter at the bottom ?????