Hyperglide (HG) series 7- or 8-speed compatible chain&44; recommended for 1995 & earlier Deore LX / STX-RC & 1999 & earlier 105 drivetrains HG technology has chamfered inner plates to optimise shifting performance on HG sprockets Durability is assured through a chromising treatment on link pins&44; & the heat treatment of rollers&44; pins&44; & plates Mushrooming of the pins gives unsurpassed side-plate retention&44; enabling the chain to far exceed the BS/ISO standard for breaking force 7.3 mm chain width&44; optimised for 7- & 8-speed HG drivetrains Corrosion-resistant grey finish on inner & outer plates 114 links&44; 335 grams