The Shimano Deore HG54 Super Narrow HG-X 10-Speed Bicycle Chain uses a directional design with specifically shaped inner and outer plates to optimize shifting over the chain set and cassette. Includes a quick and easy ampoule type connecting pin. Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity. | Shimano Deore HG54 Super Narrow HG X 10 Speed