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

Redesigned inner and outer plates

New shaped outer plate

New shaped inner plate for smoother rear shifting

Enhanced press-in construction for stable shifting

Chain Type Super Narrow HG for 10-speed