SRAM designed the Rival AXS 12-Speed Power Meter Crankset with the reliability and sophistication of Quarq's noteworthy crank-based power meter for the most discerning of cyclists. The new power meter platform is contained within the DUB spindle for a clean integration that we can't get enough of. It weighs less than 40 grams heavier than a standard crankset, and it features a long, 400 hour battery life to power a full season of riding.