I have taken a couple of them apart and they look like they were copied from
the old HD-73 rotors...I have replaced the brake disc with the 73 rotors and
all worked ok......i just never liked a rotor that used a piece of sand paper
to hold a rotor in place...

Randy

ARS: WB4UNA
Randy Chavis
247 Goff Court
West Columbia
S.C. 29172