Shimano Ultegra FC-R8100 Crankset, 52-36T, 12-speed
The Shimano Ultegra FC-R8100 Hollowtech 2 Crankset ensures maximal power transfer from the pedals to the chain. Hollowtech II technology keeps the weight of the cranks down and the chainring design facilitates the fast and precise shifting of Shimano's 12-speed Di2 groupset. The FC-R8100 Crankset is offered in a variety of crank arm lengths to suit any rider.
Note: Images are for illustrative purposes. Specifications in photos may not be correct. Includes crankset only (crank arms, chainrings, and spindle).
Features:
- Optimal balance of stiffness, strength, weight and rotational performance
- Hollowglide structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting
SPECIFICATIONS
MODEL NO | FC-R8100 |
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SERIES | ULTEGRA R8100 Series |
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Color | Series color |
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Average weight | 711 (52-36T) |
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Threaded bottom bracket shell width (mm)_70 | ✔ |
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Chainring combination | 52-36T |
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Compatible bottom bracket type_Outboard | ✔ |
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Crank fixing screw included | ✔ |
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Crank arm length (mm)_160 | |
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Crank arm length (mm)_165 | |
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Crank arm length (mm)_170 | |
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Crank arm length (mm)_172.5 | ✔ |
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Crank arm length (mm)_175 | |
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Spider/Gear arms | 4 |
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HOLLOWGLIDE | ✔ |
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HOLLOWTECH II | ✔ |
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HOLLOWTECH crank arm | ✔ |
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Optional chain guard_Without chain/bash guard | ✔ |
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Recommended bottom bracket_Press-fit | SM-BB72-41B |
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Recommended bottom bracket_Threaded (normal) | SM-BBR60 |
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Threaded bottom bracket shell width (mm)_68 | ✔ |
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Q-factor (mm) | 148 |
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Chain line (mm) | 44.5 |
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Compatible chain | CN-M8100 |
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P.C.D. (mm) | 110 |
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Rear speeds | 12 |
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