Proper front rotor size for 05/2014 X1 28iX

[5mall5nail5]

Hey all -

Looking to replace brakes on my wifes 05/2014 build X1 28iX and RealOEM is showing 312mm and 330mm front rotors with no indication or text stating which apply. I would think the 330 would be some sort of upgraded/35iX setup but it makes no mention. I may have to go out and measure, but figured there has to be some logic here.

Her car is an M Sport but it has standard floating calipers in the front.

Thanks!

[kiloTHREE]

312

[5mall5nail5]

Originally Posted by kiloTHREE

312

Is there any qualification? Why is there a 330mm even available?

My F30 had (I think) 312mm, I've replaced with 370mm M Performance brakes, and I know the M Sport brakes were 340mm.... but where does 330mm come from?

[kiloTHREE]

No idea, 348 is from the 35 and 312 is on the 28.

[5mall5nail5]

Originally Posted by kiloTHREE

No idea, 348 is from the 35 and 312 is on the 28.

Yah the 330mm is odd on RealOEM. Oh well - ordered 312mm. They were also on my F30. I guess I could have used my F30 left over rotors. Oh well.

[5mall5nail5]

Welp - Ordered the pad set ECS recommended for an E84 X1 28i and ...well... pics do the talking.



The good news is that the rotors fit. The bad news is I need to now mail back the old pads and receive the proper size.

These are Hawk HPS 5.0 that are for an M3/335 or something