Drive Plate
A drive plate (also called a friction plate) is a special clutch plate that is indexed into a motorcycle’s clutch basket (outer hub) with tabs. A drive plate has friction material attached to its surface on both sides. When the motorcycle rider engages the clutch, the drive plate(s) transfers power to the driven plate(s), which are usually plain stamped steel (rarely aluminum) plates.
[...] Drive (friction) Plate – Consumable, fiber coated, ring-shaped friction surface that interfaces between the clutch basket tangs and pressure plate. Has tabs sticking out that match the cutouts between the clutch hub tangs and is coated with a friction material that vaguely resembles brake pad compound. [...]