Aluminum Plate for MSC Clutch - back is machined from premium Swiss 7075 T6 along side hardened enough basis for a black colored colored colored last area treatment. This lightweight slipper clutch meal has machined relief areas which decrease the friction surface to greatly help with clutch fall modification. Utilizing the brand new meal, the force connected to meal is at the circumference of clutch pads, which increases effectiveness. Fits XB4'20-21