SRAM SX Eagle 12sp DUB MTB Chainset - BoostThis stunning chainset is specially developed for mountain bike frames with boost spacing as it offers the same chain retention performance as seen in all of the higher-level Eagle drivetrain cranks. Furthermore, its durable aluminium crank arm construction and steel chainring make it durable for handling the toughest rides. Ideal for replacing your old or worn out existing cranks, this superb model offers the ultimate blend of trail-taming technologies at an affordable price.Features: Material: Crank Arm: Aluminium; Chainring: Steel Speed: 12 speed Tooth Count: 32T Chainline: 52mm Bottom Bracket Compatibility: DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73 and BSA MTB68SP Mount: Direct mount Boost compatibleTechnologies: 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.