This kit includes a SRAM Eagle 90 Derailleur and SRAM Eagle 90 Double Click Shifter, and is perfect for converting your wireless AXS Transmission to a cable actuated, battery free, mechanical Transmission. Eagle 90 is SRAM&';s highest end mechanical drivetrain, with an incredibly strong, fully rebuildable derailleur and redesigned pull ratio in the shifter. If you have a non T-Type SRAM Eagle drivetrain, this mini kit is not enough to convert to a mechanical Transmission! You&';re much better off purchasing the entire kit Eagle 90 kit that includes everything you&';ll need.