yes 11" rim will fit but whats the widest tire that will fit without rubbing. I have 305s. I'm wondering if you custom make a wheel with proper offsets to increase the backspacing to maximize tire width. Anyone experiment with that? It seems like with my 19x11 wheels with 305 wide tires there is still more room on the inside but not on the outside.

 

There's that much difference between the C2 and C4 on the rear?? I have 395s on the rear of my C2.

 

Fozzy........395s???? Either that's a typo or I need to see pics immediately.

 

Whoops - fat fingers. 295s

 

18" 295's are factory sized rear tires for an '02 C4

 

If you're asking what is the widest on a 17" wheel then you need to know how wide of a wheel you have... 9" wide? perhaps? This of course will limit you on what you can put on the wheel and still be safe. Most of the time it's going to be best to stick with something suitable on a standard wheel.

Now if you're running 19x11 or even 10.5" for example then feel free to fit some 315/25/19 on there all day long...

Let me know if you have any more questions I can help with,

-Eli