I have quantity six, 180mm diameter, 6.5mm thick (friction surface thickness) four puck ceramic clutches coming to me from my clutch builder. Correct splines / hub thickness for the BMW R1100 GS - direct drop in with out the shims needed for the TT / Sachs clutch. I had to get six because of the custom build so, one for me and five for ???? Pricing I have no idea... definitely more than a standard Beetle clutch but way less than the TT / Sachs clutch!