Izumi Super Toughness Kai 1/2x1/8 106L Chain

Developed from the legendary Izumi-V design, the Super Toughness Kai is built to reduce driving resistance while maintaining extreme durability. Designed for track racers and keirin professionals, it ensures smooth, efficient power transfer with minimal friction.

NJS-Certified for Elite Performance: One of the few chains to meet the strict Japanese Keirin Association (NJS) standards, this chain is trusted by professional racers for its superior strength and reliability. Its seamless design minimizes energy loss, making it a top choice for high-speed track racing.

Unmatched Durability with High-Carbon Alloy Pins: Featuring special high-carbon alloy connecting pins—often used in low-friction ball bearings—this chain offers a 300% increase in durability compared to standard models. The enhanced wear resistance ensures long-lasting performance, even under extreme torque.

Advanced Surface Treatment for Longevity: The proprietary PTFE treatment reduces friction and enhances abrasion resistance, keeping the chain running smoothly while extending its lifespan. High-rigidity, wear-resistant pins and seamless bushings further improve strength and durability.

With its low drive resistance and ultra-tough build, the Izumi Super Toughness Kai chain is the ultimate choice for racers who demand speed, efficiency and long-term performance on the track.

We ship across India. Shipping is free on orders above ₹2,000, and ₹99 is charged on orders below ₹2,000. Cash on Delivery is available for orders up to ₹20,000, with additional COD charges based on order value. Most orders are delivered within 3–6 working days, though delays may occasionally occur. Please note that most Shimano products may take longer to ship. View full shipping policy.

Returns can be initiated within 7 days of delivery. Items must be unused, in original condition, and returned with all tags and packaging intact. Returns are available only on select categories such as apparel, helmets, jerseys, gloves, and similar items. Wetsuits and products discounted above 5% are not eligible for return.

Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. Return shipping must be arranged by the customer, as pickup is not available.

For eligible returns, you can choose an exchange, store credit, or a monetary refund. Refunds are processed after deduction of applicable shipping and transaction charges. Order cancellations are only possible before the order is processed. View full Return & Refund Policy.