SRAM Rival AXS Left Crank Arm Power Meter Spindle Assembly - 175mm 12/13-Speed DUB PM Spindle BLK E1 MFPN=AAD0555 model mountain base spindle interface

model mountain base spindle interface 30mm shell BSA shell ID 33

Stretch woven fabric

Flattop technology allows for a narrower chain with quieter operation and increased strength and durability

Reflective features for added safety

Material: hardened steel / engineering grade polymer

SRAM Rival AXS Left Crank Arm Power Meter Spindle Assembly - 175mm 12/13-Speed DUB PM Spindle BLK E1 MFPN=AAD0555 model mountain base spindle interfaceSRAM Rival AXS Left Crank Arm and Power Meter Spindle Assembly 175mm 12 13 Speed DUB PM Spindle Carbon E1. The Rival AXS left crank arm features a power meter entirely contained in the DUB spindle unit for effortless integration with any bike. Just install pair and ride. Rival AXS wide aluminum left crank arm with power meter spindle Spindle based power meter unit measures left side power to calculate total watts Long battery life to power a season of