Shimano FC-R2000 Claris Compact 8 Speed ChainsetThe Claris R2000 Compact Chainset is designed for use on a 2x8 drivetrain and features SG-X chainrings with strategically placed chain pick-up pins and tooth profiles, which ensure fast and positive shifting. The Claris R2000 also benefits from trickle-down technology from Shimano's top-end models such as the 4-arm crank design.Efficient Power TransferThe 4-arm layout gives this chainset a modern look and increases the rigidity. It's also compatible with Shimano's "Hollowtech II" bottom bracket system, which consists of large external bearings on the bottom bracket and a large spindle attached to one crank arm. This system offers smoother performance and enhanced power transfer when compared to more basic internal bearing systems.Features:Material: Crank Arms: Aluminium; Axle: Steel; Chainrings: SteelHard-wearing SG-X chainringsLightweight crank armsCompatible with 8-Speed Hyperglide (HG) chainsBottom Bracket Compatibility: Hollowtech II (not included)Tooth Count: 50/34TBCD: 4x110mmChainline: 43.5mmA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.