Hyperglide (HG) series 6, 7, or 8-speed compatible chain, recommended for Altus and older Alivio / STX drivetrains. ◦Weight: 335 grams ◦114 links ◦HG technology has chamfered inner plates to optimise shifting performance on HG sprockets ◦Durability is assured through the heat treatment of rollers, pins, and plates ◦Mushrooming of the pins gives unsurpassed side-plate retention, enabling the chain to far exceed the BS/ISO standard for breaking force ◦7.3 mm chain width, optimised for 7- and 8-speed HG drivetrains