The M6100 chain provides smooth shifting and enhanced chain retention thanks to an extended portion of the inner plate. The M6100 chain features quick-link assembly and is optimized for Hyperglide+ cassettes and Dynamic Chain Engagment+ chainrings.   Features Proprietary design ensures smooth shifting and strength. Extended inner plate improves chain engagement and retention. Shorter shift times and less pedaling shock. Optimized to work with Hyperglide+ cassette sprockets and Dynamic Chain Engagment+ chainrings.