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      12-17-2017, 04:20 PM   #9
PrematureApex
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Drives: N55 X1, N54 135, s54 m3
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Quote:
Originally Posted by bmwx1sq View Post
It's the same offset as a 3 series. The rear calipers are tiny and don't need at high of an offset.
You're still backwards on a couple of points.

First off, if you have caliper clearance issues, you need to run a LOWER offset, not a higher one, pushing the wheel further out (and the caliper further out of the barrel) to gain clearance.

Secondly, I don't think you can call the rear brakes on a 35 small, at all.

The fronts disks are 348mm, and the rears are a surprisingly big 336mm. With equally beefy calipers. The rears are bigger than an N20s front brakes. This is mainly due to the "ediff" and the need for heat capacity back there.

Moreover, because they use sliders, they sit much higher off the caliper radially than, say, a Brembo setup would.
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs)
'14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat)
'08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat)
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