50 teeth, 1-speed, DUB, Powermeter, without bottom bracket, black, 12-speed compatible, carbon crank arms, X-Sync Aero direct mount aluminum chainring, Bluetooth and ANT+ wireless technology, LED indicator for operational readiness, reset, and low battery, accuracy: +/- 1.5%, dual-sided measurement, tool-free battery replacement (CR2032), chainline 45 mm Number of chainrings 1 Type Main article color black Large chainring 50 T. Chainline 45.0 mm Crank length 170.00 mm System compatibility 12-speed Bottom bracket DUB Variation Set Measuring power and tracking data can now be even more accurate. The SRAM Force XPLR AXS power meter is elegantly hidden in the DUB spindle, allowing data to be discreetly collected to make progress. This power meter has a longer battery life, is lighter in weight, and reliable in harsh weather conditions, ensuring accuracy and reliability. Spindle-based power meter measures power on the left side to calculate total power in watts Aerodynamic chainring option in 44T and 46T Long battery life (400+ hours) for a full season of riding Replaceable AAA lithium battery DUB bottom bracket ensures durability and simplicity Waterproof (IPX7, waterproof up to 1 meter for 30 minutes) Available in crank arm lengths of 165, 170, 172.5, and 175 mm Lightweight (less than 40g heavier than a standard crankset) Sram Article number: 737901 EAN code: 710845915987 Supplier number: 00.6118.741.003 Retail packaging: Yes