SRAM XX Left Arm with Power Meter Spindle, 165mm, Black Lights Manufacturer Part Number: 0 720

Manufacturer Part Number: 0 720 424

UPC: 630950913855

UPC: 888571018736

158139-Q0-L

SRAM XX Left Arm with Power Meter Spindle, 165mm, Black Lights Manufacturer Part Number: 0 720World stage proven XX crank arm with a subtly integrated power meter to record and deliver live, accurate power readings to your head unit Utilizes what is called DUB PWR, a unique design that elegantly houses Quarqs reliable and accurate power measurement inside the DUB crank spindle itself Measuring left side power to calculate total watts, its subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life It is also