SRAM X01 Type 2.1, 11sp Rear Derailleur,Medium Cage, Black

BTI part #: GS2561 vendor part #: 00.7518.064.000 UPC: 710845764035 model: XO1 mount: 10x1 Standard speed: 11 cage: medium retention: clutch min/max: 10/42t capacity: 32t weight: 252g color: black    I N F O Vendor part number change (10/01/14) was 00.7518.034.000   X-Actuation ratio specifically engineered for SRAM's 1x11-speed mountain drivetrain X-Horizon design aligns the parallelogram to a horizontal axis providing constant chain gap across all 11 gears resulting in fast, precise shifts with reduced shifter force Type-2.1: self lubricating, roller bearing clutch mechanism provides one-way friction damping to cage improving chain stability and reducing chain-slap/noise, with an incorporated CageLock feature for faster wheel changes and chain service X-Sync 12-tooth pulley design reduces noise and maximizes chain control by alternating wide/narrow teeth to mirror chain profile, while upper pulley offset maintains chain gap to cassette Forged aluminum links, B-knuckle, and inner cage with a carbon fiber outer cage Aluminum and stainless hardware with sealed cartridge bearing pulleys

ZOOM   in stock?: YES