Whether you're a competitive rider or simply passionate about your shredding, the X0 Eagle Transmission (T-Type) derailleur is designed to meet your needs. As part of an integrated and interdependent transmission, this derailleur is mounted around the wheel axle for a first-of-its-kind direct connection to the cassette, thanks to its innovative Hangerless Interface. This groundbreaking design fundamentally changes the relationship between the cassette and derailleur, while the Full Mount attachment method ensures a strong connection that grips both sides of the frame. Setting up the X0 Eagle Transmission derailleur is as easy as SRAM's Eagle AXS derailleurs, making for a quick and intuitive install. This derailleur also boasts an overload clutch for increased resiliency and a tucked-in profile that protects the B-knuckle and outer link with fully replaceable or upgradeable protection covers. Ultimately, the X0 Eagle Transmission derailleur represents a major step forward in durability and maintenance, offering serious riders the premium componentry that's made to take on the next level. Hangerless Interface, Full Mount attachment method Competition-proven strength and reliability Install and pair via the reliable and familiar standard AXS set-up and pairing procedure Premium precision made to last Overload clutch Replaceable B-Knuckle cover and outer link Details: Model: RD-X0-E-B1 Max Cassette Teeth: 52t Material: Aluminum Weight: 475 grams AXS Battery and Charger are not included SRAM EAGLE TRANSMISSION AXS COMPATIBILITY: The SRAM X0 Eagle Transmission AXS Rear Derailleur is compatible with the following: Frameset: Any frame that fulfills the “UDH Specification” featuring a hanger-less interface can be upgraded. The SRAM UDH Bike Finder lists all UDH bikes that are compatible with Eagle Transmission. Battery: SRAM AXS Battery Bottom Bracket: SRAM DUB "Wide": BSA73 , PF89.5 , PF92 , PF30 MTB73 , BB30 MTB73 , BSA MTB68SP Chain: XX SL , XX , or X0 Eagle Transmission chains Chainring: XX SL , XX , or X0 Eagle Transmission chainring Cassette: XX SL , XX , or X0 Eagle Transmission cassette Controller: AXS POD Controller , AXS Pod Ultimate Controller Crankset: XX SL , XX , or X0 Eagle Transmission cranksets Freehub: SRAM XD compatible freehubs PowerLock: Eagle Transmission PowerLocks only Rear Derailleur: XX SL , XX , or X0 Eagle Transmission rear derailleur SRAM Eagle Transmission is not compatible with previous-generation Eagle components. However, Eagle Transmission T-Type chainrings are backward compatible with Eagle chains, so they can be used on the current Eagle drivetrains. Non-T-Type Eagle chainrings will not work with Eagle Transmission chains.