Gear Ranges 9-speed : 11x21, 11x23, 12x21, 12x23 or 12x25
Weight: 176 g. (12x25)

The Dura-Ace 7700 9-speed cassettes feature three precision-made light alloy sprocket carriers that reduce weight while increasing sprocket stiffness. Dura-Ace cogs combine titanium and chrome-moly which keeps the weight down, maintains strength, and assures maximum torque response. Lightweight 9-speed sprockets provide a wider gear choice while weighing approximately the same as the previous 8-speed cluster. Dura-Ace lock-ring included.



Item Code: ZTG-09-223