Shimano Dura-Ace FC-9100-P 172.5mm 53-39T 11 Speed Power Meter Crankset

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 reliable, 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.

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
11-speed compatible
Adapted for race specific disc brake system
Shorter length of rear centre with O.L.D.135mm
Redesigned gear teeth profile to fit wider gear pitch
Iconic design
Crank arm length: 172.5mm
Gear combination: 53-39T

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