SRAM GX Eagle AXS vs GX Eagle T-Type Transmission – mid-level wireless drivetrains go head-to-head

Close up of a rear cassette and mech.

In 2019, SRAM launched its AXS wireless technology, bringing personalization and control to the drivetrain. Initially, two AXS mountain bike options were available ( XO and XX spec) along with one for road bikes (Red eTap AXS). These electronic drivetrains didn’t replace existing models though, as mechanical, cable-operated options remained for both of these premium MTB groupsets.

These first generation, premium-priced, AXS wireless drivetrains proved reliable, were easy to install and made for a cleaner handlebar set-up. Free of wires, and with batteries mounted in the rear derailleur and shifter, this technology also eliminated the added complications of internal cable routing.