Super narrow lightweight 12-speed Hyperglide+ chain for smooth shifts and maximum durability Outstanding performance chain at a great price, a reliable workhorse for 12-speed mountain bikes of all riding styles. Sil-Tec surface treatment technology (PTFE plating) on inner and outer links and rollers that is smooth running and increases durability Comes as a 126 link length (can be shortened to size using a chain breaker) Shimano 12-speed Hyperglide+ chains have computer designed plate profiles to operate seamlessly with Shimano DCE 12-speed chainrings and cassette sprockets, resulting in 1/3 faster shift time than Hyperglide systems even under load Outer plate design has been developed to reduce the chance of chain suck For use with 12-speed HG+ drivetrains Comes complete with Quick Link which enables fast tool free chain assembly