Again, the F10 rear breaks are just fitting with 20" wheels or with 19" M5 wheels.
I found a solution for a 370 mm rear brake upgrade with OEM BMW parts, but this is really not necessary. This would be just for show&shine w/o any benefits on normal (German) streets.
I made several tests on our German Autobahn with the F10 front and OEM rear size setup and this is working very good -> also at speeds >270 km/h.
If anybody is interested in a 375mm or a 396 mm solution for the front, pls. contact me. My adapter brackets are cheaper than 700 $.
Quote:
Originally Posted by VailM3
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These are M6 replica wheels.
The rear brakes solution is really looking great but they would be not possible to make street legal for Germany. Real pity.
Quote:
Originally Posted by hiltonfa
Very nice wheels, had a set on my car before I changed to my current set. I'm keeping them for when I feel like a change 
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Also M6 replicas. But they also look really great on the Z4.
This is my new setup for the summer:
I actually installed 5 mm spacers at the rear, which is not enough. A friend of mine has the same setup with 10 mm spacers, which is a bit too much in my opinion. I have found a supplier for 8 mm spacers - I will try this next.
In addition, the rear bumper add ons are finished.