Originally posted by tboner:
I think I'll get this one right ;D

Don't forget to consider the width of your tires. Remember you are talking about a 20mm difference in tire width, of which I'd expect about 10mm on each side

The 215mm tire is going to extend beyond the stock 6.5" wide wheel about 25mm or just under an inch.

The 235mm wide tire is going to extend beyond the 7.5" wide wheel about 22.25mm.

On the inside, the factory distance from the hub face to the inside edge of the tire, if we go with a 49.5mm offset is: 132.05mm + 25mm or about 157mm or close to 6.2"

So, do you need to get to this value or smaller to guarantee that you don't hit any suspension components?

Of course what about the fenders?

But I think you are looking for an effective offset of 39mm or under to clear the inner components, but check my math since it was suspect before and watch for clearing the fenders.

TB





I didn't check your math, but this seems like it is in the ballpark. I'd probably guess 37mm would be an average offset of a 7.5" aftermarket wheel. One thing to concider though is not all 225's are created equal, some are bigger then others depending on brand.

2004 Focus PZEV 2.3L - KW sport suspension, SP camber plates, Eibach front swaybar, FS intake, FS Stealth exhaust, 3.82 Final, Torsen ATB, Prothane MM insert, E1 CSVT wheels 1/4 mile - 15.201@89.4mph