Aluminum Plate for MSC Clutch - Front is machined from premium Swiss 7075 T6 and also hardened and with a black final area therapy. This lightweight slipper clutch dish has machined relief areas which reduce steadily the friction surface to assist with clutch slide adjustment. Aided by the brand new plate, the pressure of this dish is on the circumference for the clutch pads, which increases efficiency. Fits XB4'20-21