Sram: The XX Eagle Transmission derailleur foundationally changes the relationship between cassette and derailleur. 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 Interface. Its game-changing Full Mount attachment method creates a far stronger connection and grips both sides of the frame. The new transmission derailleurs feature the same intuitive pairing and set-up procedure as our Eagle AXS derailleurs. It features an overload clutch and a tucked-in profile, removing all but what’s needed to win. It accommodates common maintenance and to further its race-day performance, comes with a lower pulley called Magic Wheel that keeps spinning if an object becomes lodged. Additionally, the XX SL Eagle Transmission derailleur features additional weight-saving cutouts in its carbon cage, a replaceable outer link and b-knuckle cover in a sleek black colorway. This is unrivaled shifting performance, light weight and unprecedented strength. The XX SL Eagle Transmission derailleur delivers. FEATURES Hangerless Interface, Full Mount attachment method. Super strong, super light, unrivaled shifting performance. Install and pair via the reliable and familiar standard AXS set-up and pairing procedure. Chain management features. Magic Wheel. Overload Clutch. Paired to its purest form for the lightest T-type derailleur. SPECIFICATIONS Speed (RD): 12s Cable pull ratio: n/a Cage (RD): n/a Max tooth: 52 Color (RD): Silver Pulley bearings material: n/a Cage material (RD): Carbon