Shimano HG50 Chain 6 / 7 / 8 Speed Chain A better quality chain than the HG40 with Durability, Chromising treatment on link pins, Heat treatment of rollers, pins, and plates. For only a slight increase in price you can increase the strength of your bike chain.
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Hyperglide (HG) series 6, 7, or 8-speed compatible chain, recommended for Altus and older Alivio / STX drivetrains
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HG technology has chamfered inner plates to optimise shifting performance on HG sprockets
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Durability is assured through a chromising treatment on link pins, and the heat treatment of rollers, pins, and plates
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Mushrooming of the pins gives unsurpassed side-plate retention, enabling the chain to far exceed the BS/ISO standard for breaking force
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7.3 mm chain width, optimised for 7- and 8-speed HG drivetrains
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114 links, 335 grams