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The GoatLink 11 hanger extension offsets the position of your 11-speed Shimano mountain bike rear derailleur allowing you to be able to run a wider range cassette while improving performance.

  • Same ergonomics and reliability of Shimano shifters and derailleurs

  • Gear range, simplicity and quietness of SRAM 1x11 drivetrain

  • High-performance and lightweight

This project began with the desire to run 11-speed Shimano derailleurs and shifters with SRAM 10-42t XD cassettes. Granted the combination can work without modification - but performance wasn't quite what we'd expect from Shimano and SRAM's finest.

When used with a 10-42t cassette, the GoatLink 11 re-positions SLX M7000, XT M8000 and XTR M9000 rear derailleurs such that free chain length between the cassette and the top derailleur pulley is within 1% of what Shimano intended while cassette tooth engagement in the smallest cog is improved by 27%.

Knowing that certain situations call for a range beyond that provided 10-42t or 11-42t cassettes, we tweaked the GoatLink 11 to also significantly improve Shimano 11spd rear derailleur performance with extended-range like the Wolf Tooth GCX 44t modified 10-44t XX1 or X01 cassette.



    Cassette  •  Compatibility
    11-40  •  Not Required
    11-42  •  Not Required
    11-45  •  GS/SGS Derailleur
    11-46  •  GS/SGS Derailleur
    10-42  •  GS/SGS Derailleur
    10-44  •  GS/SGS Derailleur (Wolf Tooth GCX44)  
    10-45  •  Not Optimized
      9-44  •  Not Optimized


      Other notes:

      • The GoatLink 11 is compatible with SLX M7000, XT M8000 and XTR M9000 series 11-speed Shimano rear derailleurs.
      • Not compatible with Shimano RD-RX812 or RD-RX817 due to the 31T capacity limitation.
      • The GoatLink 11 mounts only to standard derailleur hangers.
      • Double chainrings (2x) is supported and requires a long cage (SGS) rear derailleur with no more than a 12t difference in front chainrings (with an 11-46t cassette).
      • Triple chainrings are not supported.
      • Direct Mount native frames and SRAM derailleurs are not supported. 


        Improvements with the GoatLink 11*:

        10-42t  •  Improved by 99%
        Free Chain in bottom cog (unsupported chain - shorter is better and will increase shifting precision):

          10-44t  •  Improved by 32%
          10-45t  •  Improved by 28%
          11-45t  •  Improved by 36%
          11-46t  •  Improved by 32%
            9-44t  •  Improved by 26%

          Chain Wrap in bottom cog:

          10-42t  •  Improved by 27%
          10-44t  •  Reduced by 9%
          10-45t  •  Reduced by 7%
          11-45t  •  Reduced by 8%
          11-46t  •  Improved by 12%
            9-44t  •  Reduced by 8%
            Summary in plot form - movement towards the red X is in the direction of goodness (more chain wrap and less free chain)

              *Due to variations in derailleur hanger geometry, chainstay length, chainring size, B-screw adjustment, and suspension configuration, individual results will vary slightly.

              Related Products

              Drop-Stop chainrings

              GoatLink  for 10-speed Shimano mountain bike rear derailleur


              Tech Specs

              Weight:  19g
              Material:  6061 aluminum
              Included:  stainless steel bolt
              Torque:  8-10Nm
              Made in the USA

                WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to www.P65Warnings.ca.gov.

              Patent and trademark information