The Brembo PISTA two-piece replacement disc, 380 x 34 mm with 65a 17 mm airgap, T5 left-hand (LH) orientation, is a direct-fit rotor hat and friction ring sized to match the original assembly. Use this left-side replacement during axle repairs; install the matching right-side disc to retain designed airgap and consistent braking contact across the axle.
Brembo 380x34x65a 72V 17mm Airgap T5 LH PISTA Replacement Disc