ULTERGA 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. Redesigned SIL-TEC Chain for 11-Speed• Chromizing Treatment Link Pin
• Hollow Pin
• 116 links (257g)
• HG-EV chain for 11-speed