Shimano Shimano HG40 chain

Chain. 116 links. Hyperglide (HG) series 6, 7, or 8-speed compatible chain, recommended for Altus and older Alivio / STX drivetrains. HG technology has chamfered inner plates to optimise shifting performanceon 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. 116 links, 335 grams