IZUMI RUNWELL FIZER Track Chain Tool (JB Black Edition)

The ultimate tool for the ultimate chain. Born from a collaboration between Japan's premier chain manufacturer, Izumi, and elite tool artisans, Runwell, the FIZER (JB Black Edition) is a masterfully crafted pocket tool engineered specifically for fastening and unfastening the threaded bolt-and-nut master links on Izumi-V Super Toughness chains. Compact, perfectly knurled, and finished in a stealthy jet black, it replaces clumsy screwdrivers with flawless, slip-free Japanese precision.

KEY FEATURES

• The Izumi × Runwell Collaboration: Designed collectively by Japan’s top track cycling engineers to perfectly match the exact technical dimensions of Izumi V-series connector slots.
• Slip-Free Security: Unlike standard flathead screwdrivers that easily slip out of the connector screw and scratch your pristine chain plates, the FIZER features a recessed guide that locks cleanly over the bolt head for maximum leverage.
• Premium JB Black Finish: Features a gorgeous, durable dark industrial finish with a heavy, diamond-pattern knurled grip that ensures your fingers won't slip even when coated in drivetrain grease.
• Everyday Carry (EDC) Keyring Loop: Incredibly lightweight and compact, it includes an integrated split ring so you can attach it directly to your gear bag zipper, toolbox, or keys for rapid adjustments at the velodrome or street corner.