Ultegra now features an asymmetrical (directional) chain. Shifting precision and smoothness has been significantly improved through the use of different inner and outer plate chamfers and dimensions to accommodate the different shifting requirements of moving the chain inward and outward on the drivetrain.
Features
Asymmetric design with redesigned inner/outer plates virtually eliminates chain suck and improves 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
Specifications
Speeds: 10 Speed
Links: 116
Chain Width: 6.1mm
Chain Connector: Pressed Pin
Pin Type: Solid
Mfr Claimed Weight
267g