SRAM GX Eagle 12 Sp Rear DerailleurBringing you the versatility, toughness and slick shifting you need for dominating your local trails, the GX Eagle rear mechanism brings 12-Speed compatibility to your mountain bike (MTB) at a more wallet-friendly price point. Built to handle the roughest trails, SRAM has added steel bearings into the pulley wheels for a smooth performance that lasts. Plus, its long cage design means it works with 10-50 and 10-52 tooth cassettes, giving you the range to ride efficiently in any situation. SRAM has also updated the design of the cage to give you increased chain retention and faster shifts as you blast your way through the forest.Finished with the GX Eagle™ master colourway, it compliments any cassette and chain colourway a rider wants from the Eagle™ Colour system. Further proof that the GX Eagle™ derailleur is there for one thing - to do the job.Features:Material: Cage: Aluminium; Pulley Bearings: SteelSpeed: 12-SpeedUse: All-Mountain (AM), Cross Country (XC) and EnduroMount: Standard hanger mountCage Type: LongMax Tooth: 52TCable Pull Ratio: X-ActuationClutch Type: YesBackwards compatible, works with both 10-50T and 10-52T cassettesUpdated cage architecture provides better chain retention and precise shiftsPart of Eagle™ Colour system and goes with all colours of Eagle cassettes & chainsManufacturer’s Part Number: RD-GX-1-B2Weight: 680gBuy SRAM Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.