Corvette C6 ZR1 Rear Iron Rotor Conversion BMW Growing to a 12" chord¹

Growing to a 12" chord¹ (compared to 9

allowing precise alignment for optimal turn-in response and to compensate for variances between left and right caster

We also recommend replacing them if a crack leads to the edge of the ring

Strong & balanced initial bite

Corvette C6 ZR1 Rear Iron Rotor Conversion BMW Growing to a 12" chord¹The Girodisc system is a direct replacement for the OE disc however a different brake pad with an annulus (pad swept area) of 66mm or less must be used. This is done to keep the rotor weight at a reasonable level. If we manufactured a rotor with the same annulus as the OEM CCM rotors they would be unnecessarily heavy. The necessary pad shape is FMSI 1405 which we have available in several brands. The central hat section of these rotors are made from