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The Shimano Dura-Ace FC-R9100-P Crankarms allows for precise, reliable real-time power measurement and analysis. Featuring Hollowtech II crank construction, these expertly engineered crankarms boast stiffness gains and weight losses over previous Dura Ace crank iterations, and it's ready for today's modern race geometries with a re-positioned inner chainring to improve performance with 135 mm rear-spacing frames and short chainstays.
The real stand-out of feature of this crankset is its fully-sealed integrated crank-based power measurement system. Offering accurate multi-position measurement, the R9100-P is the essential performance tool for every cyclist who wants to achieve their true potential. Featuring an internal battery, the power meter recharges via a magnetic attachment for quick, easy charging.
Available in multiple crank lengths and gearing options. Compatible with Shimano BB-R9100 and BB-R9100-PB bottom brackets.
- Accurate real time data.
- Compatible with 3rd party displays.
- Bluetooth / ANT technology.
- Hollowtech II construction.
- Hollowglide chain.
- 11-speed compatible.
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