SRAM Rival XPLR eTap AXS D1 12-Speed 44t Max Black Rear Derailleur

The SRAM Rival XPLR eTap AXS D1 is a wireless 1x rear derailleur for 10-44t XPLR and 10-36t cassettes, built for gravel riding that mixes pavement and singletrack. It combines eTap shift logic, AXS connectivity and chain management at SRAM's Rival tier.

It mounts to a standard hanger, uses a medium cage with 34t of chain wrap capacity and larger X-SYNC pulleys. The battery is not included.

Who It's For

• Gravel riders running a Rival AXS 1x drivetrain.
• Riders upgrading from mechanical to wireless 1x on a gravel bike.
• Consider a different derailleur for 2x setups or UDH Full Mount frames.

What to Look For

• Battery: Not included; compatible with existing eTap AXS batteries.
• Cassette: 10-44t XPLR or 10-36t.
• Drivetrain: 1x specific, 12-speed AXS.

Key Features

eTap AXS. Wireless shifting with button mapping and personalization in the AXS app.

Chain management. Keeps the drivetrain quiet and the chain secure on rough surfaces.

Larger X-SYNC pulleys. For durability and efficiency.

Rider Intent Summary

• Biggest strengths: Wireless 1x gravel shifting with 44t reach at the Rival tier.
• Tradeoffs: Battery sold separately; 1x only.
• What makes it different: The middle-tier route into AXS XPLR gravel gearing.

Victory's Take

We think Rival XPLR AXS is the best-value wireless gravel derailleur in SRAM's range. Victory Bicycle Studio can set it up and pair it in the shop.

Specifications

• Brand: SRAM
• Model: Rival XPLR eTap AXS (D1)
• Drivetrain speeds: 12
• Largest cog: 44t
• Chain wrap capacity: 34t
• Cage length: Medium
• Mount type: 10x1 standard
• Shifter compatibility: SRAM eTap AXS
• Cassette compatibility: 10-44t XPLR, 10-36t
• Battery: Not included
• Color: Black
• Part number: 00.7518.159.000