A coiled black Izumi Mash Chain, favored for fixed gear bikes, is displayed on a white background.

The Izumi Mash Chain features black outer plates and gold inner links, perfect for fixed gear bikes, shown coiled on a white background.

The Izumi Mash Chain, a coiled black chain perfect for track and fixed gear bikes, is displayed on a white background.

Four black Izumi Mash Chains are displayed in front of an Izumi Track Racing Chain box, trusted by track and keirin racers and perfect for fixed gear bikes.

A partially opened box reveals a black and gold bicycle chain labeled "Izumi Mash Chain," known among track and keirin racers for its reliability.

A close-up of a black Izumi Mash Chain, designed for track bikes, partially pulled out from a branded box labeled "IZUMI TRACK RACING.

The Izumi Mash Chain, shown in black and partially removed from its branded box with the lid open—ideal for track or fixed gear bikes.

Close-up view of the Izumi Mash Chain featuring black plates and gold-colored rollers on a white background—ideal for fixed gear and track bikes.

Close-up view of the black metal Izumi Mash Chain, designed for fixed gear bikes, set against a white background.

Description

A 1/2 x 1/8 inch chain made in Japan by Izumi and produced exclusively with MASH SF. Izumi has been building bike chains since 1916, and this one carries the same reputation for toughness that their track chains are known for.

It is the chain that the world's best track and keirin racers reach for, so it suits track, fixed gear and urban builds running 1/8 inch sprockets and cogs.

Features

Made in Japan. Izumi has been making bike chains in Japan since 1916, so you are getting a long established build behind every link.
1/2 x 1/8 inch sizing. Suits the wider 1/8 inch sprockets and cogs used on track, fixed gear and urban setups.
Track and keirin proven. The same chain used by the world's best track and keirin racers, so it is built for hard pedalling loads.
A MASH SF collaboration. MASH SF and Izumi worked together on this one and it is made exclusively for them.
Suits fixed and urban builds. Fits track, fixed gear and urban bikes running the standard 1/8 inch chain line.