The newest 1091R chain features more heavily chamfered outer plates for improved shifting and quieter running. Other advancements include a new inner plate finish plus chrome hardened pin construction, both for longer chain life.
The HollowPin construction of SRAM's 10 speed PowerChain provides smooth, precise shifting and weight savings without sacrificing strength.
Technology Highlight(s) Hollow Pin, PowerLock Compatible Gears 10 Model PC 1091R Closing Link PowerLock tool-less connecting link Outer Plate Nickel Silver w/Lighting Hole Inner Plate Nickel Silver Pin Treatment Chrome Hardened Pins Weight 255 Grams / 114 links Rivet Type Hollow Pin Recommended Group SRAM Red and industry standard 10 speed systems Colors Outer Plate: Nickel Silver w/Lighting Hole, Inner Plate: Nickel Silver Compatibility SRAM Red, SRAM Force, SRAM Rival, SRAM Apex and industry standard 10
PowerLock 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.
HollowPin SRAM employs 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.