SRAM Rival AXS Wide Left Crank Arm Power Meter Spindle Assembly - 170mm 12/13-Speed DUB PM Spindle BLK E1 Model-Dropout 655 Any frame that uses IS

Any frame that uses IS (Integrated Standard) headsets with 41mm upper and 52mm lower outer bearing diameter

Use top cap and split spacers provided with ENVE stems and one-piece cockpits

with cut-outs to reduce weight and grooved for water displacement

} Through careful engineering

Perfect thermoregulation

SRAM Rival AXS Wide Left Crank Arm Power Meter Spindle Assembly - 170mm 12/13-Speed DUB PM Spindle BLK E1 Model-Dropout 655 Any frame that uses ISSRAM Rival AXS Wide Left Crank Arm and Power Meter Spindle Assembly 170mm 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