The SRAM Apex Eagle rear derailleur brings 12-speed Eagle gearing to the accessible Apex price point — the full 10-52T range in a mechanical derailleur designed for trail and gravel riding without the cost of GX or higher. A practical entry point into Eagle gearing for riders who want the range without the premium.

Highlights

  • Apex 12-speed Eagle rear derailleur — entry Eagle pricing
  • 10-52T cassette capacity for wide-range MTB and gravel gearing
  • Compatible with Apex Eagle trigger shifters
  • Mechanical shifting — no battery required
  • Trail and gravel capable

Fit and compatibility

12-speed Eagle rear derailleur. Compatible with SRAM Apex Eagle shifters and 12-speed Eagle cassettes. Requires XD driver freehub for Eagle cassettes. Confirm maximum cog capacity 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
  • Compatible with 50T and 52T Eagle cassettes
  • Works with 12-speed mechanical Apex and Eagle shifters
  • Use with Eagle chain
  • Roller Bearing Clutch controls chain tension for consistent shifting
  • X-HORIZON straight parallelogram design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force
  • Cage Lock technology makes for fast wheel changes or chain installation

Specifications

Cage (RD) n/a
Cable pull ratio X-actuation
Speed (RD) 12s
Color (RD) Black
Cage material (RD) Aluminum
Pulley bearings material Steel
Max tooth 52
SKU SRM-RD-APX-152-D1
Model # RD-APX-152-D1
Barcode # RD-APX-152-D1
Brand SRAM