SRAM X0 Eagle T-Type AXS Rear Derailleur - 12-Speed, 52t Max, (Battery Not Included), Wheel Axle Mount, Aluminum Cage, Black/SilverWhether on the starting line or not, the X0 Eagle T Type AXS12 Speed rear derailleur brings competition tested prowess to riders who let their riding prove everything. Engineered as integrated and interdependent transmission components, the X0 T Type derailleur mounts around the wheel axle itself, contacting the cassette directly with a first of its kind Hangerless Interface. This foundationally changes the entire relationship between cassette and