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      10-30-2012, 12:23 PM   #4
M3SQRD's Avatar
Drives: E92 M3s, R56 Cooper S
Join Date: Jun 2009
Location: EC

Posts: 2,452
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Originally Posted by aus View Post
Can you show the inside of the rear Brembo rotor? Is the center aluminum? Just wondering how the e-brake works on the Brembo if the center is aluminum.
Look at the last pic in the post below:

This is typical of all BBKs that retain the stock e9x M3 rear parking brake - the parking brake shoe is preloaded against an anodized/chemical-coated Alum drum. I'm running the Performance Friction BBK and I find the parking brake holding power to be very similar to the stock setup.
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