Shimano Dura-Ace FC-R9100-P 170mm Power Meter Crankset without Chainrings

This Shimano Dura Ace FC-R9100 HOLLOWTECH II Crankset (2x11-speed) is wider than its predecessor but is still very lightweight by utilising the Hollowtech II technology. The highly rigid hollow structure cuts down on weight but still maintains strength resulting in better power transfer and more precise front shifting. Equipped with the Shimano FC-RC9100-P power meter, this crankset gathers real-time accurate and reliable power output data so you can track and analyse every detail of your ride to fine tune your training and racing program.

Power Meter
The Shimano FC-R9100-P power meter has a relaible, completely sealed crank-integrated design that is waterproof in all conditions. Battery is built-in and is recharged via the included USB cable with a small magnetic adapter. The direct instant response system ensures accurate data collection for stable power measurement at various stepping positions. Simply reset the unit by a switch on the transmitter. FC-R9100-P power meter uses Bluetooth and ANT technology and is compatible with third party display units.

Note: This set includes crank arms with integrated power meter only. Chainrings sold separately.

• Series: DURA-ACE
• Optimum power transfer
• Best balance for lighter weight (-7g) and efficiency
• New 4-arm design for same stiffness with lighter weight
• Hollowtech II construction
• Adapted for race specific disc brake system
• Shorter length of rear centre with O.L.D.135mm
• Iconic design
• Crank arm length: 170mm

Power Meter
• Reliable Integrated design
• Waterproof
• Accurate data collection
• ±2% accuracy of strain gage measured power
• Stable power measurement system at the various stepping positions
• Integrated rechargeable battery via USB cable (included)
• Easily change chain rings without affecting power meter performance
• Wireless firmware update system
• Quick response and operation