microSHIFT XLE RD-M665M Rear Derailleur - 11-Speed, Medium Cage, Black, With ClutchThe 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. Product Specifics Largest Cog: 46 Rear Der Shifter Compatibility: Shimano Mountain Rear Derailleur Mount Type: 10x1 Standard Drivetrain Speeds: 11 Chain Wrap Capacity (teeth): 41 Cage Length: Medium Color: Black Today's Stock