2-speed, DUB, Powermeter, without bottom bracket, black 12-speed compatible, carbon crank arms, aluminum chainring set for screw mounting, chainline 45 mm, Bluetooth and ANT+ wireless technology, LED indicator for operational readiness, reset and low battery, accuracy: +/- 1.5%, dual-sided measurement, tool-free battery change (CR2032) Number of chainrings 2 Type Item main color black Large chainring 46 T. Small chainring 33 T. Chainline 45.0 mm Crank length 170.00 mm System compatibility 12-speed Bottom bracket DUB Variation Set Measure power data on the go more accurately than ever with the SRAM Force AXS powermeter. The stability and accuracy of the RED AXS powermeter have been further improved, now offering even more customization and maintenance options at Force level. In addition, desired chainring sizes can be easily exchanged for unparalleled performance. The powermeter is fully integrated into the chainring for less weight Super sharp shifting Power measurements are accurate to within +/-1.5% and are not affected by climatic conditions during the ride Measures power balance between the right and left leg X-Range technology also guarantees a wide range and smooth transitions DUB bottom bracket ensures durability and simplicity Available chainring combinations: 46/33T, 48/35T or 50/37T Available in lengths of 165, 170, 172.5 and 175 mm Sram Article number: 737897 EAN code: 710845915888 Supplier number: 00.6118.739.015 Retail packaging: Yes