SRAM Rival AXS Left Crank Arm Power Meter Spindle Assembly - 175mm 12/13-Speed DUB PM Spindle BLK E1 MFPN=TB2011-B The climate inside the boot

The climate inside the boot stays warm and dry

Tall side knobs penetrate loose soil and mud to provide predictable stable cornering

Machined aluminum body anodized black

To configure your pole

Melt with one wipe

SRAM Rival AXS Left Crank Arm Power Meter Spindle Assembly - 175mm 12/13-Speed DUB PM Spindle BLK E1 MFPN=TB2011-B The climate inside the bootSRAM 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