The XX T-Type derailleur mounts around the wheel axle itself, contacting the cassette directly with a first-of-its-kind Hangerless Interface. The Full Mount attachment method creates a far stronger connection and grips both sides of the frame. A tucked-in profile houses replaceable skid plates that enhances dependability in high-pressure racing environments. To further its performance, the lower pulley called Magic Wheel keeps spinning if an object becomes lodged.
| Maximum Cog | 52T |
| Minimum Cog | 10T |
| Primary Color | Black |
| Speed | 12 |