IZUMI has been manufacturing bicycle chains in Osaka since 1916 and it remains the company’s core business to this day. IZUMI is still family run and produces its chains exclusively in Japan and since 1976 also for drivetrain specialist Shimano. Decades of experience translate into quality You can rely on. In track cycling and Keirin, IZUMI has been a trusted name for decades, because nothing can flex and every watt counts. At the same time, that precision is perfect for Your singlespeed, fixie or city bike with hub gears if You value a smooth running drivetrain.
More about IZUMI
At IZUMI, a chain isn’t a disposable part, it’s precision work. Since 1916, the company has been manufacturing in the Osaka region and remains family run to this day. What has grown over more than a century shows less in big words and more in the way they work: every component is formed to micrometer level accuracy, production is backed by daily quality checks, and assembly intentionally combines machine power with hands on work so tolerances truly match.
Durability is a key priority for IZUMI. That’s why careful heat treatment and processes like shot peening are part of the workflow, improving fatigue strength and wear behavior. In the end, chains can be finished, oiled and inspected individually, especially where machines are not reliable enough.
IZUMI doesn’t only make bicycle chains, it also develops chains for other demanding applications, including custom solutions. That breadth shows how deep the know how runs. For You, that means a drivetrain component that runs smoothly, stays consistent and earns trust, whether on the track or in everyday riding.
