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1 x 12 Wide Rear Exit Kit guide

1×12 wide rear exit

Image credit: @hee_said

What’s it for?

Upgrade your SRAM 1×11 drivetrain to wide-range, mechanical 1×12 using SRAM Eagle components. The rear exit version of the kit allows you to fit an Eagle derailleur to frames where it wouldn’t otherwise be possible – for more information, check the “Forward vs. Rear Exit” section of this guide.

What’s in the kit?

The 1×12 Wide Rear Exit kit includes a 1×12 Wide ratchet for Eagle 12 speed indexing, a cable fin to convert Eagle or Apex XPLR derailleurs to SRAM Exact Actuation* (allowing them to work with SRAM road shifters) and a Rear Exit cable stop to change the cable routing on your Eagle* derailleur. There’s also a plug to keep dirt out of the original cable port.

1×12 wide rear Compatibility:


  1. SRAM Eagle X01 and XX1
  2. Ratio pre-fitted SRAM Eagle GX in a Rear Exit Bundle
  3. SRAM Apex Eagle
  4. SRAM Apex XPLR
  5. SRAM Eagle GX, NX and SX


  1. SRAM 11 speed road all models
  2. SRAM 10 speed road (using Ratio Cable Spool)


  1. SRAM Eagle all models
  2. e*Thirteen
  3. Garbaruk
  4. Rotor
  5. Ingrid
  6. Leonardi
  7. SRAM road AXS 12 speed all models (Red, Force, Rival and XPLR)
  8. Shimano 12 speed


  1. SRAM Eagle all models
  2. KMC 12 speed
  3. Shimano 12 speed
  4. SRAM Flattop


  1. Ratio Ring
  2. 1×12 chainrings
  3. 1×11 chainrings
  4. 1×10 chainrings

Green – Recommended

Amber – We’ve tested some of these and, for derailleurs in particular, some options will be an issue. These issues are related to jockey wheel clearance and total derailleur range of movement.

Red – Not recommended

*AXS®, DoubleTap®, eTap®, SRAM®,SRAM APEX®, SRAM EAGLE®, SRAM FORCE®, SRAM RED®, SRAM RIVAL®, X0®, X01®, XX1® are registered trade marks owned by SRAM, LLC. Eagle™, Exact Actuation™, GX™, NX™, SRAM APEX 1™, SRAM Force 1™, SRAM RIVAL 1™, S-series™, SX™, WiFLi™, X-Actuation™,  XD™, XDR™, XPLR™, XX™, Zero Loss™ are trademarks of SRAM, LLC. The use of these trademarks in the table below is for informative purposes only, and all trademarks remain the property of SRAM, LLC.