For smooth shifting and a quiet drivetrain, pick up Campagnolo's Chorus 11-speed chain. It's unidirectional for unparalleled function and features lightweight hollow pins as well as an anti-friction treatment for shifting perfection. It also boasts excellent wear and flex resistance.
Weight: 255 grams
For optimum drivetrain function, Campagnolo 11-speed components are best used as a system (they're not recommended for use with 10- and 9-speed Campagnolo components).