2-speed, DUB, without bottom bracket, black 12-speed compatible, carbon crank arms, direct mount aluminum chainring set, chainline 45 mm Number of chainrings 2 Article main color black Large chainring 50 T. Small chainring 37 T. Chainline 45.0 mm Crank length 170.00 mm System compatibility 12-speed Bottom bracket DUB Variation Groupset The redesigned SRAM Force crank is lighter, stiffer, and more stylish than ever. Thanks to the one-piece 2x chainrings and Thread Mount technology, the ideal 46/33T, 48/35T, or 50/37T setup can be easily chosen. X-Range technology ensures smooth transitions and minimal cadence changes when shifting. Equipped with a durable DUB bottom bracket and available in multiple crank lengths. Can be upgraded to a power meter for those who want to get more out of every ride. One-piece 2x chainring results in a lighter, stiffer, and more durable crankset Thread Mount removable chainrings The X-Range technology also guarantees a wide range and smooth transitions. Sharp and precise shifting DUB bottom bracket adds durability and simplicity Available in 46/33T, 48/35T, or 50/37T chainring combinations Can be upgraded to a power meter Available in lengths of 160, 165, 170, 172.5, and 175 mm Sram Article number: 737851 EAN code: 710845915635 Supplier number: 00.6118.738.003 Retail packaging: Yes