Izumi x MASH Jet Black Chain Gold 1/2 x 1/8"

Izumi x MASH Jet Black Gold is a Japanese 1/2 × 1/8" chain for fixed gear, track and single speed, developed together with MASH SF. The chain has black links and gold-colored rollers and is a great option if you want something more distinctive than a standard black or silver track chain without going all the way to a fully gold chain.

The chain is based on Izumi’s proven 410 construction and is made for robust 1/8" drivetrains. Izumi has extensive experience with chains for track and fixed gear, while MASH has strong roots in modern fixed gear culture—making this a natural collaboration for this type of component.

With 116 links, the chain fits chainrings and rear cogs designed for 1/8" chains and is cut to the correct length during installation. A great choice if you are looking for an Izumi chain for fixed gear or single speed with the MASH version’s black and gold finish.

Quick Specs

• Model: Izumi ES410JB MASH-G
• Type: Chain for fixed gear, track and single speed
• Chain size: 1/2 × 1/8"
• Number of links: 116
• Chain lock: Clip lock
• Color: Jet Black / Gold
• Finish: Black links with gold-colored rollers
• Fits: Chainrings and rear cogs for 1/8" chains
• Manufacturing: Japan