SRAM Apex XPLR AXS Rear Derailleur D1 Max 44T (No Battery) - 12 Speed RRP £260
1x specific for use with 11-44T XPLR, 10-44T XPLR, and 10-36T cassettes. When we can design a derailleur specifically for a 12-speed 1x drivetrain, we can do amazing things. AXS enabled for easy setup, personalization, and reliability.