SHIMANO HG40 6/7/8 SPEED KETTING

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