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Stages Cycling
Shimano XT M8100/8120 L Gen 3 Power Meter Crank Arm

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Shimano XT M8100/8120 L Gen 3 Power Meter Crank Arm

Give yourself the gift of power with the Stages Shimano XT Power Meter. This left side crank arm mates perfectly with XT M8100, M8120, and M8130 cranksets to give you single-sided power readings that are accurate within +/- 1.5%. It's an affordable and accurate way to gauge your progress as you ramp up your training efforts.


  • Power meter crank arm for Shimano XT cranksets
  • Individually calibrated to ensure +/- 1.5% accuracy
  • Updated accelerometer-based cadence without additional sensors
  • Active Temperature Compensation prevents skewed data
  • More powerful Bluetooth LE and ANT+ data transfer
  • Pairs with Stages app for zero resets and firmware updates
  • 200+ hour battery life with easy-swapping CR2032 battery
  • Stages Cycling offers power data at an affordable price
  • Item #SGCA03T
XT M8100, M8120, and M8130 cranksets
Active Temperature Compensation, individual meter calibration, accelerometer-based cadence measurement, wireless firmware upgrades, LED battery level indicator, ANT+ and Bluetooth
Accuracy (+/-)
CR2032 coin cell
Operating Time
200+ hrs
1 sticker pack
Claimed Weight
[165mm] 8.2oz (232g)
Manufacturer Warranty
1 year

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