[Polo08816]

Originally Posted by David@ApexRaceParts

The 245/40/18 tires would be quite wide for an 8" width wheel, and depending on your tire's make and model, may cause the sidewalls to bubble out a bit, leading to the steering to feel a bit sloppy. We'd recommend the 245 on at least an 8.5" width wheel, and a 235 on the 8" wheel instead.

David, what have you guys at APEX experienced with fitting 245/40/18 and 245/45/18 square setups on a 335i M Sport RWD with M Sport Brake Option cars?

A 40 profile has smaller diameter compared to stock and a 45 profile has a greater diameter compared to stock.

I have a 245/45/18 winter tire on the rear so I know for a fact that it does not rub with the standard M Sport RWD suspension. I'm not positive about rubbing with something like the M Performance Suspension (10mm lower).

My greatest concern is possible rubbing of a 245/45/18 in the front with M Sport vs. M Performance Suspensions.