Cotterpein
Dirt Disciple
I am building up a 1963 Cinelli Riviera frame. Looking among my bits I found a Campag Gran Sport rear mech which is just the right age. It is missing the claw and top pivot bolt. I can source a frame adapter claw but wonder if anyone has fitted a top pivot bolt to a Gran Sport rear mech and what options there are? For example I have numerous old Huret, Sachs, Shimano rear mechs, could a pivot bolt from these fit?
