A Wolf Tooth GoatLink is simply the fastest route to improved wear and long-term shifting performance on wide-range,1x10 drivetrains using the shimano,Shadow+,rear,derailleurs. The GoatLink re-positions,10 speed shimano,Shadow+,rear,derailleurs to the optimal location when using the GC40 and GC42 cogs.Compatibility:Compatible shimano,Shadow+,10 speed,rear,derailleurs have a Direct Mount link (including spacer if so equipped) or B-pivot knuckle with a thickness of 7.9-8.1mm. shimano,changed to this sometime in 2013. Very early Shadow+,rear,derailleurs have a thinner link and are not compatible. The GoatLink is optimized for use with Wolf Tooth?s,40- and,42-tooth GCs and all sizes of Drop-Stop chainrings- but will work with any,11-40t or,11-42t ten-speed cassette. Direct Mount-native frames and SRAM,rear,derailleurs are not supported. Features:You will NEVER need a longer b-screw with the GoatLinkImprovements with the GoatLink*Chain Wrap at,11t (effects cassette life):,40t: Improved by 69%42t: Improved by 5
