SRAM XX SL Eagle T-Type XS-1299 Cassette - 12-Speed, 10-52t, For XD Driver, Silver/BlackSRAM Eagle Transmission Cassette Can you believe that SRAM released its first 12 speed Eagle drivetrain over six years ago? And it's even been four years since SRAM Eagle AXS first came out! Yes, those pandemic years are blurry and time has been oddly fast since 2020. But those two statements above are true, and now SRAM is back to update its Eagle ecosystem once again with the new SRAM Eagle Transmission Drivetrain. A lot has changed but also not so