SRAM Crank Arm Left Rival and Power Meter Axle 172.5mm Dub

Rival AXS Aluminum Left Crank Arm with Power Meter Spindle Spindle-based power measurement unit measures left side power to calculate total watts Long battery life to power a ride season Waterproof (IPX7 waterproof to 1 m for 30 minutes) Right crank arm, bottom bracket, spider, chainring sold separately)