A chain is only as strong as its weakest link - SRAM took this to heart when we designed our innovative new 10 speed PowerChain featuring the PowerLock connecting link. The HollowPin construction provides smooth, precise shifting and weight savings. Compatibility extends to industry-standard 10 speed systems. Compatible Gears 10. Model PC 1051. Closing Link PowerLock. Outer Plate Nickel Silver. Inner Plate Grey. Pin Treatment Chrome-Hardened Pins. Weight 277g (114 links). Recommended Group SRAM Red, SRAM Force, SRAM Rival, Shimano compatible.