Lengths: 165, 170, 172.5 or 175mm
Chainrings: 39 x 53
Weight: 833 g.

Ultegra 6600 Bottom Bracket sold separately

The Hollowtech II crank and bottom bracket combine race-proven hollow forging technology with the integrated crankset & bottom bracket. Weight is reduced while rigidity and power transfer are radically increased. The crank arms are hollow which provide amazing strength and rigidity at a light weight. The SG-X chainrings enable super smooth front shifting. Special tooth profiles, pick-up spikes and ramps help make the front derailleur shift quietly, easily and trouble free.



Item Code: SSFIAWGA