Stages Dura-Ace R9100 Left Power Meter



The new Gen 3 single-sided Stages Power L is compatible with all Shimano Hollowtech II road drivetrains. The meter features upgraded Generation 3 electronics. Built on to a non-drive-side Shimano Dura-Ace R9100 crank arm.


  • Stages Power L Accuracy: ±1.5%
  • Generation 2 Accuracy: ± 2%
  • Weight: Only less than 20gr to base crank arm
  • Battery Life: 200+ hours (coin cell: CR2032)
  • Power range (Watts): 0 - 2500
  • Cadence range (rpm): 20 - 220
  • Water resistance rating: IPX7
  • Frame Compatibility: Most frames, see fit guide in our Support section
  • Crank Compatibility: All Shimano Hollowtech II road cranks
  • Device Compatibility: ANT+, Bluetooth Smart Ready
  • Software Compatibiity: Training Peaks, Strava, Garmin Training Center and others


  • Length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm, 180mm


  • LED indicator displays battery level at start up (with no need for connect to an app) and confirms successful zero reset
  • Upgraded BLE and ANT+ radios offer a 6X improvement of data transmission strength
  • Tool free battery replacement
  • Active temperature compensation
  • Accelerometer based cadence measurement
  • Updated accelerometer and addition of gyroscope for improved cadence resolution
  • Wireless firmware upgrades