SRAM SX Eagle 12 Speed Mountain Bike ChainsetThe durable SX Eagle 12 Speed Mountain Bike Chainset from SRAM includes all the benefits of the higher-level Eagle drivetrains but without breaking the bank. The chainset includes a high-quality aluminium crank arm construction and a tough steel chainring, making it a hard-wearing chainset for tackling challenging trails. Combining the best of trail-taming components, this chainset is the ideal choice to replace your existing chainset at an affordable price. Features:Material: Crank Arm: Aluminium; Chainring: SteelSpeed: 12 speedTooth Count: 32TChainline: 49mmUse: MTB (mountain bike)Bottom Bracket Compatibility: DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73 and BSA MTB68SPMount: 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.