Hyperglide (hg) series 7- or 8-speed compatible chain, recommended for 1995 & earlier deore lx / stx-rc & 1999 & earlier 105 drivetrainshg technology has chamfered inner plates to optimise shifting performance on hg sprocketsdurability is assured through a chromising treatment on link pins, & the heat treatment of rollers, pins, & platesmushrooming of the pins gives unsurpassed side-plate retention, enabling the chain to far exceed the bs/iso standard for breaking forcecomes complete with quick link which enables fast tool free chain assembly 7.3 mm chain width, optimised for 7- & 8-speed hg drivetrainscorrosion-resistant grey finish on inner & outer plates 116 links, 335 grams