Dura-Ace Track BB-7710
Brand: Shimano
Threaded bottom bracket of the Dura-Ace 7710 track group, made for the hollow Octalink spindle of the FC-7710 crankset. Shimano lists a single combination, a 109.5 mm axle in a 68 mm English shell, quoted at 244 g. The spindle is plated steel, the left-hand adapter anodised aluminium.
| Type | Bottom bracket |
|---|---|
| Model years | 2004–2011 |