No weakest link; SRAM offers the the PowerLink connecting link  for SRAM 9 speed Power Chains.

Sold as a convenient 4 Pack, keep some in your hydration pack and keep the others safe in your tool box. Out on the trail, you never know when you might need one.

• For use with SRAM 9 Speed Power Chain only
• Installs without tools
• Sold as a 4 Pack only