WolfCage Derailleur Cage


The WolfCage is a derailleur cage is a modified inner derailleur cage (facing the bike) and eccentric upper jockey wheel for Shimano 11 speed rear derailleurs that improves chain wrap and derailleur capacity.  This is required for 11-49 cassettes (11-42 with the Wolf Tooth GC49) and also improves shifting and drivetrain life on other wide range cassettes.  

The WolfCage installs in a couple minutes and simply replaces the stock inner cage and upper jockey wheel.  You will not need to break your chain or remove your rear derailleur from the bike!


  • Compatible ONLY with mechanical Shimano 11-speed rear derailleurs (SLX, XT, and XTR).  Di2 mountain derailleurs are not supported. Be sure to select the right cage length.

Complimenting Products

  • Shimano GC49 and SRAM/Sunrace GC49
  • GCX44
  • GC45

Tech Specs:

  • Inner cage
  • Installation instructions on WolfCage Tech and Install Page.
  • Only for use with mechanical Shimano 11 speed rear derailleurs
  • Design and manufactured in Minneapolis, MN USA
  • Material 6061-T6
  • Colors - Black, Red, Blue, Gold, Silver
    • Weight - 22g (cage plus upper jockey wheel)