Vintage Shimano - RX100 rear derailleur on the vintage Shimano service bench. These are basically identical to 105 1055 apart from the polished finish. | Facebook
Shimano RX100 Bremshebel Set Aero BL-A550 schwarz Vintage | Studio Brisant
VeloBase.com - Component: Shimano FC-A550, RX100
Shimano RX100 FD-A551 Braze On Front Derailleur 2 x 8 Speed Bottom Pull i25 - Tony's Restaurant in Alton, IL