Well folks now for the humble pie bit. This is the race clutch according to Rayspeed , seemingly Surflex don't bother
to machine flat the rear of the crown wheel so if you get a well finished crown wheel it's the indian road clutch.
It's a bit like when our lass burns the bairn's fishcakes and puts the burnt side to the bottom and covers them in baked beans.
What you can't see shouldn't worry you , mind the the fishcakes don't spin at however many rpm and work under load , but I
suppose that's what your product insurance is there to cover .

No apologies for the hub bearing though as that definitely was a JBL India and not a Casa one