SRAM X0 Powermeter Left Arm/SpindleX0 Eagle AXS Transmission Left arm Spindle Power Meter provides riders with accurate, live power data delivery. DUB PWR 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 compatible with the Flight Attendant system, allowing for total
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