Accelerate your progress with lightweight accurate and reliable power measurement for Force AXS. This quick easy left crank arm with power meter DUB spindle fits your needs and takes your training to the next level.Force AXS wide carbon left crank arm with power meter spindleProven Quarq reliability and accuracySpindle-based power meter unit measures left side power to calculate total wattsLong battery life to power a season of ridesWaterproof (IPX7 waterproof to 1 meter for 30 minutes)47.5mm ChainlineRight crank arm Bottom bracket Spider Chainring sold separately)