Engineered as integrated, interdependent transmission components, the T-Type derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless InterfaceFull Mount attachment method creates a far stronger connection and grips both sides of the frameNew transmission derailleurs feature the same intuitive pairing and set-up procedure as our Eagle AXS derailleursTucked-in profile houses replaceable skid plates that enhances dependability in high-pressure racing environmentsFeatures an overload clutch, tucked-in profile and Magic Wheel lower pulley that keeps spinning if an object becomes lodgedInstall and pair via the reliable and familiar standard AXS set-up and pairing procedureXX Eagle AXS12sp52Long1to1SIL450gUPC/EAN/GTIN: 710845892141