SRAM Rival AXS Wide Left Crank Arm and Power Meter Spindle Assembly - 175mm 12/13-Speed DUB PM Spindle Carbon E1. The Rival AXS left crank arm features a power meter entirely contained in the DUB spindle unit for effortless integration with any bike. Just install pair and ride.

Rival AXS wide aluminum left crank arm with power meter spindle

Spindle-based power meter unit measures left side power to calculate total watts

Long battery life to power a season of rides

Waterproof (IPX7 waterproof to 1 meter for 30 minutes)

Right crank arm Bottom bracket Spider Chainring sold separately)