microSHIFT XLE RD-M665M Rear Derailleur - 11-Speed Medium Cage BLK With Clutch

microSHIFT XLE RD-M665M Rear Derailleur - 10/11-Speed Medium Cage Black With Clutch. The XLE series of rear derailleurs feature top quality durable metal construction and compatibility with Shimano MTB drivetrains giving you maximum flexibility when putting together a new build or repairing an existing bike.