The Campagnolo Record 11 Speed Chain is idealized for use with all Campagnolo 11 speed component groups. Designed for use by pro riders a Record chain emphasizes optimum power transfer, smooth shifting and durability. Each link is profiled for ideal shifting when used within a complete Campagnolo 11 speed drivetrain. The Record chain utilizes hollow pins to achieve lighter weight and maintain strength. also, Campagnolo uses a proprietary master pin to ensure and a long-lasting connection. Complete your Campagnolo 11 speed drivetrain with a Record 11 speed chain. If you have any questions regarding compatibility or installation please contact the service department at the shop. We would be happy to walk you through the process and help verify you are purchasing the correct chain.