The SRAM X1 X-HORIZON rear derailleur is an 11-speed 1x MTB derailleur built for trail and all-mountain riding — X-HORIZON geometry keeps chain tension consistent through varied terrain, and the X1 sits between NX and GX in the SRAM 11-speed lineup. A reliable 1x11 option for riders who don't need the full 12-speed Eagle range.

Highlights

  • 11-speed 1x MTB rear derailleur — X1 tier
  • X-HORIZON geometry for consistent chain tension on rough terrain
  • Compatible with X1 and GX 11-speed trigger shifters
  • Wide-range cassette capacity for 1x off-road gearing
  • Trail and all-mountain capable construction

Fit and compatibility

11-speed MTB 1x rear derailleur. Compatible with SRAM 11-speed MTB shifters (X1, GX, X01). Confirm maximum cog size and cassette compatibility before ordering.

Installation. Service. Compatibility. Find all the documentation needed to set up, use, and maintain your components in the SRAM Service hub.

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Features
  • This X1 rear derailleur is an integral part of the SRAM 1x™ drivetrain system. NO COMPROMISES.
  • X-HORIZON™ design reduces shift force and ghost shifting
  • Consistent chain gap on all cogs

Specifications

Cage (RD) Long
Cable pull ratio X-actuation
Speed (RD) 11s
Color (RD) Black
Cage material (RD) Aluminum
Pulley bearings material Steel
Max tooth 42
Weight (g) 256
SKU SRM-RD-X-1-A2
Model # RD-X-1-A2
Barcode # RD-X-1-A2
Brand SRAM