One for the wheel and tyre experts out there. Should the tyre pressures stay as standard with bigger wheels and tyres? It seems to me that if the tyre is wider then the pressure should come down a bit on standard. I have 235/40 - 18 front and 265/35 - 18 rear.

 

I run 42 (ish ;-) up front and 40 (ish ;-) on the rear.

 

/\/\ark

 

I run std pressure on my 19s. I can't see why it should be any different??

 

Coogs, 19's? you bloody poser

 

Just as a guess I would have expected the pressures to be a little higher, just because there is a greater width of tread to support. However, the best indicator is likely to be tyre wear.

 

The rule of thumb which I've heard is 1 or 2 psi increase per 5% drop in profile (e.g. going from a 50 to a 40 is 2 to 4 psi increase).

 

Using this method, I've got gone through 2 sets of rears and 1 set of fronts and they've all had reasonably even wear.

 

Dave

 

Hairsy

So that means you use 2 sets of rears to one of fronts!!

 

I hope to get more than 5000 out of this next set of rears. What do you get?

But even the 35psi i have at present feels hard.

 

Willie

 

Willie,

Yes, two sets of rears for each set of fronts. I think I tend to get around 8,000 - 10,000 from the rears. Would be a lot less without the traction control ...

Dave