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Shimano Dura-Ace R9100 Precision Left-Side Power Meter

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Why We Like The Shimano Dura-Ace R9100 Precision Left-Side Power Meter

We use the Power Meter to pace ourselves on grueling canyon ascents, race day sprints, and training days. This crank-integrated power meter is compatible with Shimano Dura-Ace drivetrains, and just needs to be connected to a bike computer or head unit to start using its ultra-accurate power readings.


  • Crank-integrated power meter for road cycling
  • Construction is designed to match the flex of your existing crank
  • ANT+ and Bluetooth connectivity
  • Item #FII0002
ANT+, Bluetooth Smart
3D strain gauge technology, advanced metrics, IPX7 waterproof
Accuracy (+/-)
+/- 1%
CR2032 coin cell
Operating Time
100+ hrs
Manufacturer Warranty
3 years
road cycling