[DogBear]

I have a 2015 BMW M235i xdrive. What is the maximum width I can fit in the rear and front? I was wanting to put 10.5inch on the rear and 9.5inch on the front. Is this doable without rubbing or cutting anything out. I currently have H&R street performance coilovers.

[Fiesta ST to M240i]

8.5"/9.5" works depending on offsets. 9.5"/10.5" would not.

[DogBear]

Could I square them both at 9.5”?

[Dom147]

without rubbing or cutting, I was able to fit 255 square with a 9 inch wide wheel ET42 with -2.5 degrees of camber. I can't see anyone fitting more without major modification. 265 in the front would fit for sure with about -4 degrees of camber and 275 has been done by GSR but they accomplished that by pulling the front fenders a bunch and a lot of camber.

The rear has more breathing room with a 9.5 rear ET58 making a 265 easy. Some have reported having to trim the fender liner and the shock dust boot though so I'm sure it's very dependent on the tire you plan on running.

Here's a link to the build by GSR, absolutely amazing stuff and worth the read.
https://www.2addicts.com/forums/show....php?t=1117222

And here is a fitment guide made by the wonderful people over at apex wheels.
https://apexwheels.com/fitment-guide...-fitment-guide