SRAM Apex AXS Wide Left Crank Arm and Power Meter Spindle Assembly - 172.5mm, 12-Speed, DUB Spindle Interface, Black, D1 sunrace Trail Doc is now removable

Trail Doc is now removable so that it may be used with Tri Doc tripod

Internals are fully serviceable and replaceable

Compatible with Fox A1

For use with Level

Item Specifications Length 250mm FD/Shifter Compatibility Shimano Ultegra Di2

SRAM Apex AXS Wide Left Crank Arm and Power Meter Spindle Assembly - 172.5mm, 12-Speed, DUB Spindle Interface, Black, D1 sunrace Trail Doc is now removableAccurate, 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 watts Proven Quarq reliability and accuracy Long battery life (400+ hours) to power a season of rides Waterproof