SRAM Red AXS Crankset Speed: 12 Spindle: 28.99mm BCD: Direct Mount 46/33 DUB 170mm Black RoadX Range gearing technology gives you more range and a smoother gear progression, so youre always in the right gear Improved front shifting performance for crisp and accurate front shifts Unique chainring design results in a lighter weight, stiffer, more durable crankset DUB bottom bracket adds durability and simplicity Can be upgraded to a power meter SRAM Model ID: FC RED D1 TECH SPECS BCD Direct Mount SRAM 8 Bolt BB Inclusion No Chainline 45mm Teeth