Sram PC 1030 Chain - 10 Speed.
The PC 1030 Chain - 10 Speed is a tough road chain that is perfect for precise shifting with 10 gears and offers the PowerLock technology.
PowerLock
Powerlock is a tool free, sure and consistent way to connect 10 speed chains. The especially tight tolerances of 10 speed drive trains mandates that each PowerLock is good for a one time application only.