julio 24, 2026
(Shimano's lettering on their 7700 series was very superficial/easily rubbed off). Dura Ace 7700 was a 9-speed system (9 X 2). It should work fine up to 10 speed. Weights: right crank with chainrings 53/39: 401 g; left crank 199 g; total 600 g (weighed).