11speed: no tool chain connector for 11/128" Connex 11sp chains\n 10speed: 6.1mm wide no tool chain connector for Shimano, and Campagnolo compatible 11/128" chains \n 9speed: 6.5mm wide no tool chain connector for 11/128" Connex chains \n 68 speed: 6.8mm wide no tool chain connector for 3/32" Connex chains