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From the manufacturer's official website:
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.
Features:
- HOLLOWTECH II crankset offers optimum balance of lightweight and rigidity
- Smoother rolling from minimal bearing interface of integrated bottom bracket
- Gearing: 52-39T, 53-39T, 53-42T, 50-39T
- Crank Arm Length variations: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm, 180mm
- Weight: 740g (53-39T, 170mm including BB)
Specifications:
- Rear Speeds 10
- Chainring Combination 53-42T 52-39T 53-39T 50-39T 54-42T 55-42T 56-44T
- PCD 130mm
- Splined Crank Yes
- Crank Arm Length (mm) 165 167.5 170 172.5 175 177.5 180
- Chain Super Narrow HG for 10-speed
- Bottom Bracket Model No. Chain Line SM-FC7800 43.5mm
- Hollowtech Crank Arm HOLLOWTECHII
- Crank Arm Material/Finish Aluminum/ Anodized
- Top Gear Material/Finish Aluminum/ Anodized
- Low Gear Material/Finish Aluminum/ Anodized
For more information, please visit this product's webpage.
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