Ultra-Link connectors are designed to provide maximum performance to campy transmissions. Enhanced efficiency means longer life for chainrings and sprockets Special steel link pins have been designed to adhere perfectly to gears and sprocket teeth providing maximum fluidity, reduced friction and improved chain life Advanced Ni-PTFE anti-friction coating provides smooth pedaling, quiet operation and longer life through reduced friction strain Must be installed using a UT-CN300 tool 9sp 1/2x3/32 114L Ultra Link Nickel 230g