[BasdeWit]

Hello all,

Last weekend I bought me a set of M sport brakes of the front side (340mm) from a M235i. Its an as good as new set as the owner got his car for track racing and he immediately replaced the front brakes.

I am planning to replace my brakes, a 125i f20 2012 with m sport kit, however with the standard grey brakes. I am wondering about two things:

1. will I be fine just replacing the front brakes (calipers, pads, disks), or MUST I also replace the rear with the blue m sport set? I have read on some forum threads that only front is fine too
2. will it fit with my OEM 17' wheels? Style 383.

If anyone could help me out on this I would be thankful!