We employ HollowPin construction on all SRAM top of the line PowerChains. HP yields plate retention strength, front and rear shifting efficiency, and low weight benchmarks unreachable in solid pin chain applications. SRAM chain engineers developed PowerLock as a tool free, sure and consistent way to connect our 10 speed chains. While PL does not require special tools for install, the especially tight tolerances of 10 Speed drive trains mandated that each PowerLock is good for a one time application only. Compatible Gears 10. Outer Plate Nickel. Inner Plate Nickel. Weight 265g 114 links. Recommended Group SRAM Red, SRAM Force, SRAM, Rival, SRAM Apex and industry standard 10 speed systems.