Hyperglide (hg) series compatible chain, recommended for deore and Tiagra drivetrainshg technology has chamfered inner plates to optimise shifting performance on hg sprocketsdurability is assured through a chromising treatment on link pins, and the heat treatment of rollers, pins, and platesmushrooming of the pins gives unsurpassed side-plate retention, enabling the chain to far exceed the bs/iso standard for breaking force6.57 mm chain width, optimised for 9-speedsuper narrow hg drivetrainscorrosion-resistant grey finish on outer plates116 links, 304 grams
