Description Campagnolo 11 Speed Chain. About Product: The Engine Of The 11-speed Drivetrain Is The Chain. It Has Been Designed To Eliminate All Friction With The Sprockets Adjacent To Those In Operation.A Special Treatment Ensures Smoothness. We Have Reduced The Width Of The Chain To 5.5 Millimetres With The New Spacing And A New Material Has Been Envisaged For The Outer Links. The Pins Are Hollow Inside To Reduce The Weight While Maintaining Strength. It Is Necessary To Use Tool Ut-cn300 To Fit It. The Ni-ptfe Treatment Ensures Smoothness And Long Life. The Ultra-link Fastening System Guarantees Strength And Operation With The New 11-speed Sprockets. Technical Specification: Requires Ultra-link For 11s Chain Lightened Links 11s Outer Link New Material For Outer Link Width – 5.5mm Ultra-link Fastening System External Links In Special New Steel Ni-ptfe Anti-friction Treatment Hollow Pins Weight – 255g All our products are professionally packed and shipped with tracking number and insurance. Lafo Bikes is offering you high end bikes, frames, parts & accessories that we love. We are selling only genuine products, no copy or replica. Our goal is to offer you the best price on amazing bikes.