With 20 spline central hub.
(the central hub in the product image is an example as well as the diameter of the disc)
16 holes
8 mm thickness
Sinter 6-puck, Clutch Discs, 228 mm
184 mm, 184 mm, Sinter 6-puck, Sinter 6-puck
20 splines M90, Organic, 228 mm