2-speed, DUB, without bottom bracket, 12-speed compatible, hollow carbon crank arms, direct mount aluminum chainring, 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 175.00 mm Secondary color grey System compatibility 12-speed Bottom bracket DUB Variation Crankset SRAM continues to innovate; the lightest and stiffest SRAM crank is now even lighter thanks to optimized hollow carbon cranks. The optional power meter is the ultimate tool to take performance to the next level. Professionals can no longer do without it. It is the lightest, stiffest, and most accurate (max +/-1.5% deviation) power meter ever. Crankset made from a single piece X-Range technology for more range and smoother operation 29 grams lighter than the previous version DUB bottom bracket Optional power meter Sram Article number: 735208 EAN code: 710845898617 Supplier number: 00.6118.683.005 Retail packaging: Yes