The SRAM Rival AXS E1 DUB Power Meter Direct Mount Crankset integrates power measurement into a robust, lightweight, and efficient design. It features aluminum arms, direct mount chainrings, and a spindle-based power meter for accurate data without compromising shifting or ride quality. With wide compatibility, long battery life, and weather-sealed reliability, it offers dependable performance for data-driven training. The spindle-based power meter measures left-side output to calculate total power, providing reliable watt data and a cost-effective way to track training loads. An integrated AAA lithium battery offers a 400+ hour runtime, ensuring minimal maintenance and consistent operation. The lightweight design adds less than 40g to a standard crankset, preserving responsive ride feel and bike handling. DUB bottom bracket compatibility simplifies setup and improves bearing durability for a smooth, low-maintenance ride. It has an IPX7 waterproof rating (1m for 30 minutes), protecting internal components and enhancing reliability in all weather conditions. Direct mount aluminum chainrings with X-Range gearing provide crisp, consistent front shifts and wide gear coverage for improved cadence control and efficiency. This crankset is ideal for cyclists seeking consistent and accessible power data, offering a smart balance of accuracy, simplicity, and value. SRAM's one-piece chainring structure maintains drivetrain stiffness and precise shifting, while the long-life battery and waterproof design ensure performance across varied conditions. It fits seamlessly into modern 12-speed road setups using DUB bottom brackets. Equip your training and racing setup with a crankset that delivers essential data without trade-offs in weight, shift quality, or durability. Specifications: Speeds: 12 BB Compatibility: All SRAM Road DUB BBs Chainring Size: 46/33T, 48/35T Crank arm length: 160mm, 165mm, 170mm, 172.5mm, 175mm Chainline: 45.0mm BB Spindle Interface: DUB Chainring material: Aluminium Guard: No Guard Bolt Circle Diameter (BCD): Direct Mount (DM) Crank arm material: Aluminium Colour (Crank arm): Black Power meter: Yes Power Meter Type: Spindle Bottom Bracket Technology: n/a