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The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss Noir anodized finish, giving it a luxurious look. The resin ribs on the back de the Plateaux are SHIMANO 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance.
FEATURES
- Optimal balance de stiffness, strength, weight and rotational performance
- HOLLOWTECH II structure cuts weight yet maintains strength for better power transfer
- Crank arm length: 160, 165, 170, 172.5, 175 mm
- Gear combination: 50-34T, 52-36T
- Q-factor: 148 mm
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Review Shimano FC-R7100 12 Speed 34/50T Hollowtech II 170mm Crankset