Shimano XT RD-M8200 12-Speed Derailleur

The most robust DEORE XT mechanical rear derailleur to date promises a reliable, robust ride for every discipline. It's based around a modern hanger and a new low-profile, wedge-shaped design to avoid impacts on the trail. If it does hit rocks or roots, a spring inside the derailleur helps it absorb impact and return to its original position. SHADOW ES: A slimmer, stronger evolution of Shimano's pioneering chain-stabilizing SHADOW concept, with a wide link structure for durability Wedge-Shaped Design: Made to move out of the way to absorb trail impacts for a worry-free ride Covered Pulleys/Cage: The solid pulley and shielded pulley teeth prevent trail debris from jamming up your flow Cage Length: Medium (GS); Long (SGS) Mid Cage: Compatible with all HYPERGLIDE+ 9-45T 12-speed cassettes Long Cage: Compatible with all HYPERGLIDE+ 10-51T 12-speed cassettes Total Capacity: 36t (Medium GS); 41t (Long SGS) Minimum top cog: 10 tooth Maximum top cog: 45t (Medium GS); 51t (Long SGS) Compatible Chain: HG 12-Speed Fluoric coated link bushings Sealed Bearing 13 tooth pullies