SRAM PC Red 22 - 11 Speed Chain - PCR 22SRAM PC Red 22 11 Speed Chain PCR 22 The new SRAM Red 22 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 11 speed chain provides smooth, precise shifting and weight savings without sacrificing strength. HollowPin technology equals strength, incredible