Aluminum Plate for MSC Clutch - backside is machined from premium Swiss 7075 T6 and also hardened sufficient reason for a black colored final area therapy. This lightweight slipper clutch plate has machined relief areas which reduce steadily the friction surface to aid with clutch slide adjustment. With all the brand new dish, the pressure associated with dish is in the circumference of clutch pads, which increases effectiveness. Fits XB4'20-21