7900 Dura-Ace 10-Speed

Top of the range Dura-Ace Super narrow lightweight 10-speed directional chain for optimum cassette and chainset interaction and maximum power transfer Chain uses a directional design with specifically shaped inner and outer plates to optimise shifting over the chainset and cassette Outer plate design has been developed to reduce the chance of chain suck The inner plate has been developed for better contact with gears providing smoother shifting under high load, giving efficient pedalling, increased rigidity, and near silent running Hollow link pins and perforated inner link plates offer great weight savings Hyperglide (HG) series 10-speed compatible chain Durability is assured through a chromising treatment on link pins, and the heat treatment of rollers, pins, and plates 5.88 mm chain width, optimised for 10-speed Super Narrow HG drivetrains Zinc-alloy silver finish offers the longest lasting and best resistance to corrosion 252 grams