Shimano Ultegra CN-6701 10-Speed Chain. FEATURES: Asymmetric design with redesigned inner/outer plates virtually eliminate chain suck and improve contact with the cassette sprockets for smoother, noiseless shifting under heavy loads- for double chainrings only Reshaped outer plate is perforated to reduce weight and chain suck Reshaped inner plate lessens drivetrain friction for smoother rear shifting Enhanced press-in construction offers stable shifting action SPECS : Speeds: 10 speed Chain Width: 6.1mm Link Count: 116 Links Pin Type (Rivet Type): Solid Pin Closing Link (Connection Type): Pressed Pin Weight: 267g Color: Silver