SRAM Red AXS 1x XPLR DUB Wide E1 Power Meter Crankset Track Your Power Power isn't just something that road riders track so they can get better, you can track your power while riding offroad too. The SRAM Red AXS 1x XPLR DUB Wide E1 Power Meter Crankset has a new spider-based power meter and removable Thread Mount chainrings. The Red XPLR AXS power meter is lightweight, reliable in all weather, and accurate within +/-1. 5%. With dual-sided power measurement, even your loftiest gravel training goals are within reach. The crank arms are made out of carbon fiber and the power meter uses a replaceable CR2032 battery with a 200-hour battery life. Features All-new design with removable and replaceable Thread Mount chainrings Power readings are accurate with +/-1. 5% and aren't affected by climate conditions during a ride Replaceable CR2032 battery with a 200-hour battery life Ultra-light hollow carbon fiber crankarms are 29g lighter than previous generation Compatible with all SRAM Road Wide DUB BBs IPX7 waterproof to 1 meter for 30 minutes SPECIFICATIONSSpeeds12/13-Speed BB Compatibility All SRAM Road Wide DUB BBs Chain Ring40T, 42TCrank Arm Length160mm, 165mm, 167. 5mm, 170mm, 172. 5mm, 175mm BB Spindle Interface DUBChainring Material Aluminum Bolt Center Diameter (BCD)Thread Mount Crank Arm Material Carbon Fiber Chainline47. 5mm Bottom Bracket Included No Intended Use Gravel Weight N/A | Sram | Red Axs 1X Xplr Dub Wide E1 Power Meter Crankset 170Mm 40T