SRAM X4 7-8 Speed Rear DerailleurCompatible with both 7 and 8-speed SRAM drivetrains, this X4 rear derailleur benefits from technologies used on SRAM’s more expensive mechanisms to bring you reliable shifting, even over the toughest terrains. One of the few types out there with a high performance level and good value for money, it’s ready for hard rides, on the road or off-road.Features:Speed: 7/8-SpeedCompatibility: SRAM 7/8-Speed flat bar shifters onlyCage Size: Long CageMaximum Cassette Size: 11-34TTotal Capacity: Long 45TTechnologies: Di.R.T: Direct Route TechnologyMounting: Standard hanger mountClutch Type: NoUse: Hybrid, Mountain Bike (MTB)1:1 Actuation RatioLightweight materials selection6061 Alloy B-knuckleSteel cage with replaceable pulleysLow profile designWide pivot design for superior stiffness during shiftsManufacturer’s Part Number: RD-X4-A1Weight: 220gBuy SRAM Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.