Hey Guy's,
I have a friend who is rebuilding an RM125A, he wants an original looking rear sprocket (with the large round cut-out holes), he'd prefer silver alloy but will take a steel, I reckon he could repaint a black one silver.
He'd prefer a 57 teeth, the bike will be ridden rarely so a real good used one would be ok.
He actually works for Suzuki Australia, he might be able to repay a favour? ;-)