Hollowtech II crank and bottom bracket combines race-proven hollow forging technology with the integrated crankset & bottom bracket. Weight is reduced while rigidity & power transfer is radically increased. In addition to Hollowtech II integrated design; the crank arms are hollow which provide amazing strength and rigidity at a light weight. Finally, SG-X chainrings enable super smooth front shifting. Special tooth profiles, pick-up spikes and ramps help make the front derailleur shifts quiet, easy and trouble free for you the rider.
- HOLLOWTECH II crankset offers optimum balance of lightwieght and rigidity
- Smoother rolling from minimal bearing interface of integrated bottom bracket
- Bottom bracket cups (BB-7800) sold seperately
- Gearing: 52-39T, 53-39T, 53-42T, 50-39T
- Triathlon spec: 54-42T, 56-44T, 55-42T
- Weight: 740g (53-39T, 170mm including BB)
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