Shimano CN-HG40 chain engineered for smooth, precise shifting across 6, 7, and 8-speed drivetrains. This HG-type chain features 114 links and is optimized for HYPERDRIVE SIS and DUAL SIS indexed shifting systems. Gray pin link plates and brown roller link plates deliver reliable power transfer and durability. Weighs approximately 324g. Built for consistent performance on entry-level to mid-range bikes demanding dependable drivetrain efficiency.