Experience the ultimate in off-road performance with the 520 FB series, the strongest and most durable sealed drive chain in our lineup. Engineered for riders who demand reliability, this chain utilizes Fine Blanking (FB) technology—an incredibly precise manufacturing process that ensures perfectly cut links. These tight tolerances create a superior union between the plate, pin, and bushing, resulting in an exceptionally accurate and strong build.
Constructed from high-grade alloyed steel, the 520 FB boasts our highest tensile strength rating at nearly 8,000 lb. This makes it the ideal choice for high-torque applications and engines 450cc and above. To ensure long-lasting performance in harsh conditions, the special sealing rings are chemically treated to increase overall strength while significantly reducing friction.
The innovative FB treatment allows the O-rings to be impregnated with grease, providing a self-lubricating system that outperforms traditional X-rings in both durability and efficiency. Whether you are looking for a complete drive chain or a precision-matched replacement connecting link, this series provides the professional-grade components needed for peak power transfer and longevity.
Technical Specifications & Features:
- Fine Blanking (FB) manufacturing for maximum precision and strength
- High tensile strength rating of nearly 8,000 lb.
- Advanced grease-impregnated FB rings for reduced friction and high durability
- Chemically treated sealing rings for enhanced wear resistance
- Recommended for applications 450cc and above
- Clip-type connecting links included with chains; replacement links available separately
