Product Description For wide-range 10-speed drivetrains: the GoatLink rear derailleur adapter by Wolf Tooth Components The Lindarets x Wolf Tooth GoatLink is the easiest way to minimise wear and improve long-term shifting performance on advanced 1x10-speed drivetrains with Shimano Shadow+ rear derailleurs. The GoatLink optimally positions 10-speed Shimano Shadow+ rear derailleurs when used with 40 tooth or 42 tooth cassette extensions. Technical Information:Material:aluminium (6061), stainless steel boltCompatibility:Shimano Shadow+ 10-speed rear derailleurs with Direct Mount Link or B-axle joint with 7.9 to 8.1 mm width (as of 2013)11-40 10-speed cassettes, 11-42 10- speed cassettesnot compatible with older Shadow+ rear derailleurs (until 2012) with thinner Linknot compatible with direct mount framesnot compatible with - SRAM rear derailleursFeatures:developed through collaboration between Lindarets and Wolf Tooth Componentssaves the use of a longer B-screw for extended 10-speed cassettesimproves the durability of the cassetteimproves shifting precisionoptimised for Wolf Tooth GC 40-tooth and GC 42-tooth8 - 10 Nm tightening torqueMade in the USAManufacturer Number:10SGLINK Contents:1 x Wolf Tooth Components GoatLink 10-speed rear derailleur adapter1 x screws Weight: black: 19 g Manufacturer: Wolf Tooth Components 6400 W 105th St Bloomington MN 55438 USA info@wolftoothcomponents.com Distributor: Cosmic Sports GmbH Leyher Straße 47 90763 Fürth Germany info@cosmicsports.de