Shimano Tourney CN-HG40 Chain – 678-Speed 116 Links Gray. The Shimano Tourney CN-HG40 chain is designed for precise index shifting on 6 7 and 8-speed Hyperdrive SIS and Dual SIS drivetrains.

• HyperGlide 6 7 8-Speed chain
• Optimized chain for HG sprocket which provides a fast and precise rear shifting performance (especially during downshifts)
• Includes Shimano Quick Link SM-UG51
• The CN-HG40 chain meets durability requirements for E-MTB applications

Details