I have a 944 N/A and i want to get new tires and wheels. I was wondering what is the widest tire I could run with out getting tire rub.

 

Wheel diameter?

 

I was thinking about getting the BBS RS 17" or 18"

 

I have a nice set of 3 pieces BBS RS that I might consider selling.
The tires I run on the are 225/50/16 and 245/45/16.

 

TonyG here on RL ran a 305 section width on a 10 inch wide rim, 17 inch diameter rear tire.

Several people run 295/30 on an 11 inch wide 18 inch diameter rear wheel.

 

With such wide tires, camber, ride height and suspension travel play major role. Just FYI

 

295, with rolling the lip.

 

It really depends on the offset of the wheels and how much camber you are running. With the right offsets and a little bit of camber, you can fit 265 wide in the front, and 295 in the back if the lips are rolled or cut out.