Occupying a new realm in shifting performance, the redesigned XX1 Eagle derailleur gives no-compromise racers and dream-bike builders a true top-tier optionUpdated cage geometry provides better chain retention and crisper shiftingBackwards compatible, works with 10-50t and new 10-52t cassettesComes in XX1 Eagle master colorway as part of Eagle Colorsystem to go with all cassette and chain color options - Black, Gold, Rainbow, HardChrome and all-new CopperThe crisp, precise XX1 shifting feel athletes rely on now features an updated cage geometry for improved chain managementFeatures a carbon cage and titanium hardwareXX112sp52LongLunar GreyUPC/EAN/GTIN: 710845853531