Key Features: Hyperglide (HG) series 9-speed compatible chain recommended for Deore and Tiagra drivetrainsHG technology has chamfered inner plates to optimise shifting performance on HG sprocketsDurability is assured through a chromising treatment on link pins and the heat treatment of rollers pins and platesMushrooming of the pins gives unsurpassed side-plate retention enabling the chain to far exceed the BS/ISO standard for breaking force6.57 mm chain width optimised for 9-speedSuper Narrow HG drivetrainsCorrosion-resistant grey finish on outer plates116 links 304 grams