TPM-R540AMR-S (Z3R Modified 540 Rotor, Mod RPM, Gold (12.0/5.0/25.3))
TPM-R540ASR (Z3R-S Stock Spec 540 Replacement Rotor, Red (12.2/7.25/24.2))
TPM-R540AST (Z3R-S Stock Spec 540 Torque Rotor, Blue (12.2/7.25/25.0))