XCadey XPOWER-S G2 Spider Power Meter

The XCadey XPOWER-S G2 Spider Power Meter turns your existing crankset into a dual-sided power meter without replacing the arms. The CNC-machined AL-7075 spider houses high-precision strain gauges and an accelerometer with intelligent temperature compensation, measuring total power, cadence, left/right balance and pedalling smoothness to ±1% in all weather. It broadcasts over ANT+ and Bluetooth to any head unit or app, runs up to 350 hours on a charge, and tops up in 3 hours with the included magnetic USB charger.

Choose your fitment — the first part is the crank interface the spider bolts to (SRAM 3-bolt or 8-bolt, Shimano direct mount, Cannondale, Easton or Race Face Cinch, Rotor Aldhu / 3D, or XCADEY 5-bolt cranks); the second part is the chainring bolt pattern it accepts (104BCD MTB, 107BCD SRAM road, 110BCD 5-bolt, or 110-4S Shimano-pattern asymmetric 4-bolt). Chainrings sold separately.

Key specs: accuracy ±1% · power 0–2500 W · cadence 30–220 rpm · total power, cadence, L/R balance, smoothness · ANT+ & Bluetooth 4.0 · 150mAh rechargeable Li-ion, up to 350 h · magnetic USB charging (3 h) · IP67 · AL-7075 CNC · ~90–200g depending on fitment · -10 to 50°C · XCADEY app (iOS / Android) · 24-month warranty.