GEN 3 STAGES POWER L | DURA-ACE R9100

$649.99 (as of May 7, 2018, 4:37 am)

Upgraded BLE and ANT+ radios offer a 6X improvement of data transmission strength
Updated accelerometer and addition of gyroscope for improved cadence resolution
Accuracy: ± 1.5% | Weight: Only adds 20g to base crank arm | Water resistance rating: IPX7

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