Sram Red E1 DUB 175x46/33 DUB crankset black/silver

Ultra-light hollow carbon fiber crankarms - 29 g lighter than the previous generation. One-piece 2x chainring results in a lighter weight stiffer more durable crankset. X-Range gearing technology gives you more range and a smoother gear progression so you’re always in the right gear. 50/37T 48/35T and 46/33T chainring combos available. DUB bottom bracket adds durability and simplicity. Can be upgraded to a power meter