Lengths: 165, 170, 172.5 or 175mm
Chainrings: 30 x 39 x 52
Weight: 750 g.

Dura Ace 7800 Bottom Bracket sold separately

The Dura-Ace Hollowtech II crank and bottom bracket combines race-proven hollow forging technology with the integrated crankset and bottom bracket. Weight is reduced and efficiency has been radically increased. A combined FC/BB weight reduction of 30 grams has been achieved. In addition, Hollowtech II allows the bottom bracket bearings to be spaced wider apart (outboard bearings) and the axle and bearings themselves to be larger. The net result of course is a more effective load distribution, increased rigidity and stability, as well as longer service life.

Item Code: SSBIDWBD