Shimano CN-HG40 HyperGlide Chain. Designed for use with Shimano Hyperdrive SIS and Dual SIS systems. Shimano 6-speed drivetrains. Shimano 7-speed drivetrains. Shimano 8-speed drivetrains. Shimano Quick Link Included.
The HG40 chain is designed for precise index shifting on 6, 7, and 8-speed HYPERDRIVE SIS and DUAL SIS drivetrains. Chain Shimano CN-HG40 Quick Link 116L 7.4mm Grey. Shimano service essentials. Optimized for HG sprocket provide fast and precise shifting performance.