What Our Gearhead(R) Experts Are Saying: "I appreciate how the Rival AXS Power Meter crankset makes reliable power measurement accessible for more riders. The spindle-based sensor is simple to set up, and the battery lasts for months-no fussing with frequent charging. It's lightweight, delivers accurate data, and the crisp X-Range shifting is a real bonus for training and group rides."We know that every watt counts when pushing for new personal bests, so we trust the Rival AXS Power Meter Crankset from SRAM to deliver accurate, real-time data on every ride. SRAM's advanced aluminum crank arms and integrated X-Range chainrings keep things light and stiff, while the spindle-based power meter ensures you're always in the know about your output, whether you're training indoors or hammering out big days on the road. SRAM's design philosophy shines with the Rival AXS Power Meter. The DUB spindle system maximizes durability and compatibility, while the left-side power measurement is simple to use and easy to maintain. With over 400 hours of battery life from a single AAA lithium cell and waterproof construction, we can focus on the ride, not the tech. Integrated one-piece chainrings and crisp shifting round out a crankset that's ready for everything from fast group rides to solo missions.