SRAM SX Eagle 12sp DUB MTB ChainsetThis high-quality chainset offers the same chain retention performance as seen in the higher-level Eagle drivetrain cranks. Its durable aluminium crank arm construction and steel chainring make it a tough component for tough rides in the mountains. This stunning model offers the perfect blend of trail-taming technologies at an affordable price, making it a perfect choice of a replacement for your old existing cranks.Features: Material: Crank Arm: Aluminium; Chainring: Steel Speed: 12 speed Tooth Count: 32T Chainline: 49mm Bottom Bracket Compatibility: DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73 and BSA MTB68SP Mount: Direct mountTechnologies: DUB: The relationship between bottom bracket spindle and bearing is the core of DUB technology. It's where stiffness meets durability. SRAM took it a step beyond conventional thinking and made everything simpler, by better integrating the relationship between chainring, crank, spindle and bottom bracket. It's this clear system approach that equals better drivetrain performance.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.