SRAM Apex AXS Wide Left Crank Arm Power Meter Spindle Assembly - 172.5mm 12-Speed DUB Spindle Interface BLK D1 Touchscreen-Yes 8 Color Black Defined Color

8 Color Black Defined Color Black Length 40 Material Alloy S

Spring loaded upright arms and the caliper arm can be quickly pulled away

Perforated upper for the utmost ventilation

Alloy backing plate is 50% lighter than steel backing plate

SRAM Apex AXS Wide Left Crank Arm Power Meter Spindle Assembly - 172.5mm 12-Speed DUB Spindle Interface BLK D1 Touchscreen-Yes 8 Color Black Defined ColorSRAM Apex AXS Wide Left Crank Arm and Power Meter Spindle Assembly 172. 5mm 12 Speed DUB Spindle Interface Black D1. Accurate reliable power measurement is practically a requirement these days and the Apex AXS crankarm power meter upgrade is the easiest way to get precise power numbers. With the tech hidden inside the DUB spindle it fits almost any bike while remaining stealthy. DUB PWR spindle based unit measures left side power to calculate total