SRAM just announced its new 12-speed AXS XPLR 1x-specific drivetrains, featuring all-new derailleurs, a 10-44T cassette, and more. Find details on the intriguing Rival AXS XPLR group here…

Alongside the larger XPLR product launch—which also features the RockShox Rudy gravel fork and 27.2mm Reverb AXS dropper post—SRAM just announced a completely new range of 1×12 wireless drivetrains built for gravel cycling. The AXS XPLR group is centered around a new derailleur design to work with an all-new 10-44T semi-wide range cassette. The derailleur is offered in RED, Force, and Rival flavors with two versions of the cassette. Find details on the Rival group components below, with links to others to follow.



The new XPLR 10-44T cassettes provide a 440% mid-to-wide gearing range with a slightly different cogset geared specifically for gravel riding. The gearing progression of these new cassettes (10-11-13-15-17-19-21-24-28-32-38-44) provides a closer progression on the high end, with a slightly larger jump in the low gears than Eagle (10-12-14-16-18-21-24-28-32-36-42-50 or 52). The tight jumps on the high end are clearly focused on speed. Find more details below.

  • SRAM XPLR AXS Cassette
  • SRAM XPLR AXS Cassette
  • SRAM XPLR AXS Cassette
  • SRAM XPLR AXS Cassette

The full-pinned, one-piece SRAM XPLR AXS 10-44T cassettes are available at XG-1271 and XG-1251 levels, weighing in at 373 grams and 412 grams, respectively. The lower-end model is all steel and the lighter 1271 has an alloy 44T cog.

  • 440% range with closer high-end gearing progression
  • For use with XPLR 1x rear derailleurs
  • Compatible with Flattop chains
  • Compatible with XDR driver body
  • MINI CLUSTER technology for light weight and durability

SRAM XPLR AXS components will be available in limited quantities in August 2021 with wider availability beginning in September 2021. The XG-1271 will retail for $210/€225/£200 and the 1251 for $150/€160/£145.

SRAM XPLR AXS Rival Derailleur

The SRAM XPLR eTap AXS rear derailleur is a dedicated 1x-specific unit designed for use with XPLR 10-44T cassettes. It has the same proven wireless shift logic, AXS connectivity, and chain management as other AXS derailleurs, but is designed specifically for a mid-wide 440% gear range. Find specs below.

  • SRAM XPLR AXS Rival Derailleur
  • SRAM XPLR AXS Rival Derailleur
  • Available at SRAM RED, Force, and Rival levels
  • Wireless electronic eTap shift logic for intuitive shifting, easy setup, and reliability
  • 1x-specific for use with 10-44T XPLR and 10-36T cassettes
  • SRAM AXS enabled, allowing personalization
  • Larger X-SYNC pulleys for increased durability and efficiency
  • Compatible with existing eTap batteries

The SRAM XPLR AXS Rival Derailleur will be available in limited quantities in August 2021, with wider availability beginning in September 2021. It will retail for $255/€265/£236 while the Force version will sell for $490 and the RED for $719. The claimed weights of the three are 293g, 308g, and 327g for the Rival.

Also note that SRAM released a couple of new direct mount cranksets in the Force and RED ranges, but the Rival 1 crankset remains unchanged. Both the Force 1 and RED versions are offered with direct mount chainrings in 38T through 46T. Find more about the full XPLR collection over at

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