Stages Dura-Ace R9100 Dual Sided Power Meter

The new Stages Power meter is built on to a Shimano Dura-Ace R9100 crank set. The Stages Power meter is placed on both the drive and non-drive side of the crank in order to independantly measure a rider's left and right legs.

Tour Proven. Stages Power has carried riders to three consecutive Tour de France victories, plus many more world and national championships. If you believe racing provides the world’s best product proving ground, then Stages Power is proven as the world’s best power meter.

Active Temperature Compensation as standard equipment. Consistency of measurement is the most important feature of a power meter. Stages Power was the first meter to make temperature compensation an automatic process ensuring accurate readings no matter the environmental conditions. ATC is the key reason a rider can trust data from Stages Power in all conditions.

Individual meter calibration for the most accurate results. Stages Power meters are calibrated individually to ensure a +/- 1.5% accuracy level. Individual calibration means that you can trust the bi-lateral data produced by our system, as it's a real measurement and not an estimation.

Features:

• +/- 1.5 % accuracy in all conditions
• Active temperature compensation
• Accelerometer based cadence measurement
• Wirelessly upgradable firmware
• LED indicator displays battery level at start up (with no need for connect to an app) and confirms successful zero reset
• Updated accelorometer and addition of gyroscope for improved cadence resolution
• Upgraded BLE and ANT+ radios offer a 6x improvement of data transmission strength

Specifications:

• Accuracy: ± 1.5%
• Power meter housing: low profile design, with robust door interface. Tool free battery replacement on the left arm and phillips head screw access on the drive side
• Weight: Only adds 35g to base crank set
• Battery Life: 175+ hours (via 2 coin cell: CR2032)
• Power range (Watts): 0 to 2500
• Cadence range (rpm): 20-220
• Chainring size/style: Standard 39/53; Mid-compact 36/52; Compact 34/50
• Water resistance rating: IPX7