The newest narrower SRAM PC-1170 chain features more heavily chamfered outer plates for improved shifting and quieter running. The chrome hardened pin construction provides longer chain life.
SRAM chain engineers developed PowerLock as a tool free, sure and consistent way to connect our 11 speed chains. While PL does not require special tools for install, the especially tight tolerances of 11 Speed drive trains mandated that each PowerLock is good for a one-time application only.