CCB and wheel damage

MarkFT · 11-17-2020, 10:43 PM

I am purchasing a M2CS with the CCBs, and am well-aware of the issues with rocks getting stuck between the CCB/M Sport Brake callipers and wheels causing scratches/grooves. I am planning on getting the callipers re-painted anyway, and as part of that work I was contemplating asking the shop to shave the calliper slightly to provide more clearance.

Has anyone here done this or know of someone who has? I am thinking just a few mm would make a difference.

medphysdave · 11-18-2020, 08:47 AM

Racing brake uses 396mm rotors for their kit. To remedy this same issue. You could look at their caliper dimensions to see how they compare to stock. 2mm from rotor radius plus height difference between the two calipers. I'd be very careful about pulling material off the caliper without having someone knowledgeable in this area give advice. It's certainly not a component that I'd want to weaken. I'm in for the results. Very creative idea, and may work brilliantly.

Artemis · 11-18-2020, 07:52 PM

Quote:

Originally Posted by medphysdave

I'd be very careful about pulling material off the caliper without having someone knowledgeable in this area give advice. It's certainly not a component that I'd want to weaken.

Valid point.

Regardless of personal safety and warranty, could also become an insurance issue should brakes someday malfunction in any way whatsoever because of an issue caused or contributed by the alteration. IMHO not worth it. Same goes for, for example, seat belts and airbags.

MadBimmeRad · 11-19-2020, 07:58 AM

Quote:

Originally Posted by Artemis

Quote:

Originally Posted by medphysdave

I'd be very careful about pulling material off the caliper without having someone knowledgeable in this area give advice. It's certainly not a component that I'd want to weaken.

Valid point.

Regardless of personal safety and warranty, could also become an insurance issue should brakes someday malfunction in any way whatsoever because of an issue caused or contributed by the alteration. IMHO not worth it. Same goes for, for example, seat belts and airbags.

That video is simply incredible; thank you for sharing.

11-17-2020, 10:43 PM	#1
MarkFT Second Lieutenant 128 Rep 266 Posts Drives: BMW M3 (G80) Join Date: Jul 2012 Location: Ontario iTrader: (5)	CCB and wheel damage - shaving brake calliper? I am purchasing a M2CS with the CCBs, and am well-aware of the issues with rocks getting stuck between the CCB/M Sport Brake callipers and wheels causing scratches/grooves. I am planning on getting the callipers re-painted anyway, and as part of that work I was contemplating asking the shop to shave the calliper slightly to provide more clearance. Has anyone here done this or know of someone who has? I am thinking just a few mm would make a difference. __________________ BMW M3 (G80) Gone: 911 GTS, BMW 1M, E46 M3, X7 M50i, Porsche Cayenne GTS, X5M, M2CS, Cayman GT4 (981), Alfa Giulia QV, Carrera T, F80 M3 CS, Focus RS, M2 (OG), 14 E63S AMG wagon, M3 & M4 (F8X), X5 (F15 & E70), 335IS, VW Golf R (MK7), Audi SQ5, Cayman (987), M3 (E90), M5 MT (F10), A4 Avant (B8), S4 (B8), RS4 (B7), VW GTIs (MK2 to MK6)
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11-18-2020, 08:47 AM	#2
medphysdave Brigadier General 4554 Rep 4,665 Posts Drives: M2 CS \| 85 of 592 Join Date: Apr 2015 Location: Charlotte, NC iTrader: (3)	Racing brake uses 396mm rotors for their kit. To remedy this same issue. You could look at their caliper dimensions to see how they compare to stock. 2mm from rotor radius plus height difference between the two calipers. I'd be very careful about pulling material off the caliper without having someone knowledgeable in this area give advice. It's certainly not a component that I'd want to weaken. I'm in for the results. Very creative idea, and may work brilliantly.
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