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      08-10-2015, 06:49 PM   #2
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Drives: N55 X1, N54 135, s54 m3
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Quote:
Originally Posted by maxX1 View Post
Hi, I am about to change my brakes on my ride and I would like to know what is the actual original size of the front rotors ? is it 312x24 or 330x24. I will pull the trigger on a set of Zimmerman front rotors and they offer both sizes for the BMW X1 2012, Xdrive 28i.. If both sizes fit, should I go for the 330's ? I can't find the info anywhere,

Thanks guys
I'm only seeing 312 via google search. Where are you seeing otherwise?

And no, both sizes will certainly not fit (without at least a different bracket).

Edit, I'm seeing both too (13"/330mm on BMW's website).

Hmmm...
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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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