BMW M2 F87 / M3 F80 / M4 F82 BTCC Custom Rotor Bells – 368 mm × 36 mm for AP Racing CP9660 Calipers | XC3 Engineering Socket Sets Reliable and consistent performance for

Reliable and consistent performance for racing conditions

Electrode tip

Available in 51mm

Premium Pre-Preg Carbon Fibre Construction

BMW M2 F87 / M3 F80 / M4 F82 BTCC Custom Rotor Bells – 368 mm × 36 mm for AP Racing CP9660 Calipers | XC3 Engineering Socket Sets Reliable and consistent performance forProduct Overview Upgrade your BMW M2, M3, or M4 (F80 F82 F87) with these bespoke BTCC spec rotor bells from XC3 Engineering. Machined from high quality 6082 T6 aluminium and designed to mount 368 mm 36 mm rotors with AP Racing CP9660 calipers our rotor bells make a big brake upgrade straightforward, precise, and reliable. Whether youre on a track build, clubsport car, or high performance road machine, these bells deliver accurate rotor alignment, heat