Wolftooth GoatLink

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.

COMPATIBILITY

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 GOATLINK*

Free Chain in bottom cog (unsupported chain - shorter is better and will increase shifting precision):

10-42t • Improved by 99%
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%

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

SPECIFICATIONS

Weight: 19g
Material: 6061 T6 aluminum
Included: stainless steel bolt
Torque: 8-10Nm
Made in the USA

The Story

Wolf Tooth was founded to design and manufacture precision cycling products that emphasize function, performance, and reliability to meet the needs of our fellow racers and riders.

We are a group of cyclists in Minneapolis, Minnesota that spend a lot of time talking about bike components. Like most detail-obsessed riders, we're always looking for new products that could make our bikes lighter, faster, more versatile, or more reliable. We pride ourselves on delivering premium products of the highest quality.