Piers Retro Guru Jul 8, 2013 #11 Mavic made a b/b which fitted against a chamfer cut into the b/b shell. Replaceable bearings and adjustable chain line. There are shops out there which still have the cutting tool (but not the b/b).
Mavic made a b/b which fitted against a chamfer cut into the b/b shell. Replaceable bearings and adjustable chain line. There are shops out there which still have the cutting tool (but not the b/b).
