Originally Posted by bigjae1976
I'm looking to put these on my M3 using the OEM 18s. I think I want to stay with 275/35R18s on the rear.
What do you think would be a good option for the front OEM 18x8.5 rim?
I think the 245/35/18 would be a good match (and I get a lot of them). It specs out at 24.7" diameter and is designed for a 8-9.5" rim. The 255/35/18 has 24.8" diameter and fits a 8.5-10" rim. The 275/35/18 fits a 9-11" rim and has a 25.5" diameter.
Ideally, I would suggest you get another set of rear rims and run a 275/35/18 on all 4 corners.