ET49 fronts on F21\F20 (And Question Regarding Bolts)

[MaX]

Will they fit. I see BMW fits ET45's on the front of the F21. I've found a nice set but with ET49 infront. Its only 4mm difference right? Cos there is about 0.5km gap between the spokes currently and the caliper.

TIA!

 

[MaX]

Also, just read the E82 and the F21 use different bolts... can I just use the bolts from my F21 or would the bolt holes on the rim be different sizes?

 

[phantom]

Also, just read the E82 and the F21 use different bolts... can I just use the bolts from my F21 or would the bolt holes on the rim be different sizes?

The previous models used 12mm bolts and on your F range they are now 14mm.The pitch on the bolt thread is also finer.As long as your bolt will go through the rim it will be ok.
Higher ET means it will be more under the car.
I have actually got ET39 0n my F20 and they really fill the arch nicely.
Originals are ET45 front and ET52 rear. :rollsmile:

 

[MaX]

Where did you get the ET52 rears?

 

[sash]

personally i would say if changing the rims it should out a little more, even if by just a few mm, if they go further in it makes it looks like the car is on skinny wheels and get lost in the wheel arch...

 

[MaX]

Agree, the ET 49's were touching shocks anyways.

 

[phantom]

Where did you get the ET52 rears?

ET52 is the standard size on the M135i.

 

[MaX]

Where did you get the ET52 rears?

ET52 is the standard size on the M135i.

I know, but cant find any aftermarket ones with ET52.