What size tire do i need for a 7.5 wide rim?

[denisbmwm5]

I found some rims from ebay that are 17inch 7.5 wide. and wanna know whats the widest tire i can put on it.

[DanGillan]

215-40/17 is the normal size you;ll want, but depending on the offset and your suspension, you may be able to go wider without rubbing

[denisbmwm5]

How wide are 98 m3 contour rims? 8 inch wide?

[e30Matt]

How wide are 98 m3 contour rims? 8 inch wide?

Depends on what wheel you get. Some sets were staggered, other sets were the same width all the way around. I believe it was 7.5 and 8 or 8.5" widths, though.

[C ///M]

E36 M3 staggered wheels were 7.5 and 8.5 with 225/45 and 245/40 tires.

As far as tires for a 17x7.5, the norm is 215/40 and it's a good match with a good selection. I happen to like oversized tires, but it's only possible to run them with rolled fenders, a very stiff suspension, and offset cab bushings for the front to move the wheel a little forward. You could also run 215/45 tire or 235/40.

Another option is 225/40 but the only tire available in that size is a Nitto NT555. You're probably better off just going with 215/40, you'll be happy.

[denisbmwm5]

Well im running 215 55 with my stock basket weaveswitch are 6.5, so thats why i was able to run 245 of 7.5, thanks for the info guys

[Kavkazia]

I'm running 225/45/17s on my Kosei's with 30mm offset without rubbing or rolling fenders, in front and rear.