Sram X01 Eagle AXS Rear DerailleurThe Sram X01 Eagle AXS Rear Derailleur has been optimized for motor driven operation instead of cable actuation. Capable of Instantaneous shifts from single touch, even under World Cup winning chain-loads! This is compatible with XG-1295 Eagle cassette only. Thanks to the AXS technology you can customize your button’s functions with the AXS App. Shorter Cage to give 10mm more clearance from the ground to prevent impact. The Overload Clutch feature allows the motor gearbox to disengage during an impact to help resist damage. Tested to IP69K water and dust proofing standard for creek crossing, mud splattering, and post ride high-pressure washings. Features carbon cage and titanium hardware. Does NOT include Battery, sold separately as # 530147.710845824128