On the rear derailleurs there was PATENT XX where XX is the year 19XX... up until when? Then the numbering system changed, correct? How did it work exactly?
On the hubs, under or on the locknuts, again it was CAMP XX where XX is the year 19XX, but finding an 11 on a locknut? Or is this 77?
Any guidance appreciated.
David in snowy Ottawa
--
David Bilenkey
dbilenkey@sympatico.ca