Specifications

Measurement location: spider; total power with approx. 1.5% accuracy. Wireless: ANT+ and Bluetooth Smart power profile, cadence included. Power: rechargeable Li-ion with magnetic charge port; long multi-ride runtime per charge. Water and dust protection: IP67 for year-round Indian conditions. Interface: 110 mm BCD, 4-arm (Shimano road); crank lengths commonly offered 165/170/172.5/175 mm. Axle: 24 mm road standard (Hollowtech IIstyle) for broad bottom-bracket compatibility. Firmware: user-updatable via manufacturer app.