11-speed: no tool chain connector for 11/128″ Connex 11sp chains. 10-speed: 6.1mm wide no tool chain connector for Shimano, and Campagnolo compatible 11/128″ chains . 9-speed: 6.5mm wide no tool chain connector for 11/128″ Connex chains . 6-8 speed: 6.8mm wide no tool chain connector for 3/32″ Connex chains