SRAM Force AXS XPLR E1 Rear Derailleur

The SRAM Force AXS XPLR E1 Rear Derailleur was designed from scratch for 1x gravel — not borrowed from a road platform and adapted, but purpose-built around the demands of variable terrain, wide-range cassettes, and wireless electronic control. The Full Mount, hangerless interface does away with the traditional derailleur hanger entirely, which means no alignment screws to drift after a hard landing and one fewer failure point on remote roads.

Compatibility is deliberately tight: the derailleur is engineered to work with 10-46T XPLR 13-speed cassettes and Flattop chain, a pairing that delivers consistent, precise shifts across the full range without the slack and compromise you get from wider-tolerance setups. Straight parallelogram geometry keeps the derailleur body tracking clear of the wheel under the kind of lateral flex that gravel and mixed-surface riding puts on a frame. When parts eventually wear, the rebuildable construction means you're replacing components — not the whole unit.

SRAM Force AXS XPLR E1 Specs at a Glance

• Drivetrain: 1x XPLR 13-speed
• Cassette range: 10-46T XPLR
• Chain compatibility: Flattop
• Interface: Full Mount, hangerless
• Serviceability: Rebuildable with replaceable parts