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Stages Cycling
Shimano Ultegra R8100 L Gen 3 Power Meter Crank Arm

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Why We Like The Shimano Ultegra R8100 L Gen 3 Power Meter Crank Arm

Our favorite power meter is back and better than ever with the Shimano Ultegra R8100 L Gen 3 Power Meter Crank Arm. Accurate to within +/- 1.5%, this easy-to-use power meter crank arm is used by professionals and amateurs alike because of its lightweight and durable properties. When installed on your non-drive side, the power meter only adds an extra 15g to the crank arm, making it one of the most weight-efficient power meters you can buy for your bike.


The third generation Ultegra R8100 features radio antennas 6x more powerful than its previous models, allowing for better compatibility with bike computers, watches, and phones. The Stages power meter is compatible with both Bluetooth and ANT+ enabled devices, allowing you to mix and match your already owned computer or heart rate monitor without breaking the bank on a whole new setup. Its battery life is also a key feature, providing 200 hours of juice before requiring an easy tool-free replacement.


Details

  • Non-drive side power meter crank arm compatible with Shimano Hollowtech II cranks
  • Power meter adds only 15g to the crank arm itself
  • Compatible with both ANT+ and Bluetooth for use with more devices
  • Claimed accuracy of +/- 1.5%
  • CR2032 battery provides 200 hours of battery life
  • Item #SGCA044
Material
Hollowtech II aluminum
Powermeter Type
single-sided
Compatibility
Shimano Hollowtech II cranks
Accuracy (+/-)
#ERROR!
Battery
CR2032 coin cell
Operating Time
[max] 200hr
Includes
1 left sided crank arm with factory-installed power meter
Claimed Weight
[172.5mm] 7.3oz (208g)
Manufacturer Warranty
1 year
Activity
road cycling

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