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  • BRAKE HARDWARE
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  • CALIPER REPLACEMENT

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    • McLAREN

    Learn more about how RB caliper components are made.

    Model Year Front Rear
    570S (650S, 675LT, 12C) CCB Rotors 11-17

    MC-61 (27.0/31.8/38.1x30)

    CP7705 - Rotor size 394x36mm

    MC-41 (31.8/36.0x32)

    CP7545 - Rotor size 380x34mm
    720S (GT, 750S, 600LT, 765LT (non-Senna)) CCB Rotors 2017+

    MC-62 (27.0/31.8/38.1x30)=MC-61

    CP7715 - Rotor size: 390x36mm

    MC-42 (31.8/36.0x30)

    CP7716 - Rotor size 380x34mm
    765LT (Senna) 2021+

    MC-63=MC-61 except piston ht (27.0/31.8/38.1x34)

    Boots & seal kits only (piston ht 34mm N/A)

    Front rotors: 390x36mm

    CP7728

    MC-43 (31.8/36.0x30)=MC-42

    Same as CP7716 except w/5mm longer legs for 390mm rotor vs. 720S' 380mm

    Rear rotors: 390x34mm
    570S (650S, 675LT, 12C) Iron Rotors 2011+

    MC-43 (38.1x41.3x32)

    CP7545

    MC-44 (31.8/36.0x32)=MC41

    CP6697

    Caliper pistons correspond to AP part numbers (CPxxxx); color variants are disregarded.

    Why rebuild OE calipers with RB components (piston):

    Left: OE / Right: RB (OE 31.8x30.1mm vs. RB 32x30mm). Made with the same stainless steel material.

    • RB pistons are vented for quick piston engagement and release.
    • RB pistons are mirror-finished with chrome plating on the surface, to assure smooth movement and lasting durability.
    • RB pistons feature a thin-wall cut — very light weight (2/3 of OE) for more effective functionality.
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