Izumi Chain: Japanese Bicycle Chains Since 1934

Izumi Chain MFG.CO.,LTD has been manufacturing bicycle chains in Japan since 1934 and is recognized for its high precision and durability, especially in professional track cycling.

The company is based in Japan and has become a global standard for cyclists who demand components with minimal tolerances. Izumi is best known for its heavy-duty chains used by professional riders worldwide, including in the demanding Japanese Keirin races. Their range extends from standard chains for everyday use to the well-known Super Toughness series, developed to withstand extreme stress on both track and street.