PARTS UNLIMITED 520 O-Ring Series - Drive Chain - 116 Links MPU520POX116L2

If you're running a 520 O-ring chain on your motorcycle, you already know the value of sealed protection—but wear and maintenance costs add up fast. The Parts Unlimited 520 O-Ring Series extends chain life dramatically while maintaining the reliable sealing you depend on, reducing unscheduled replacements and keeping you focused on riding. This Japanese-manufactured chain delivers the durability and performance that serious riders expect.

Built with quad pin riveting, solid bushings, and reinforced rollers, this chain resists the wear that compromises acceleration and handling. The O-ring seals trap lubrication where it matters most, while shot-peening and pre-stretching eliminate weak points and initial slack. You'll get 1.5 times longer wear life than a standard O-ring chain and 12 times longer than non-sealed alternatives—a difference you'll feel in both performance and your wallet.

• 520 pitch class
• 116 links total
• O-ring sealed
• Quad pin riveted
• Solid bushings and rollers
• Shot-peened construction
• Pre-stretched
• Made in Japan
• OEM upgrade fitment
• 1.5x standard O-ring life
• 12x non-sealed chain life
• Direct bolt-on installation
• Recommended for O-ring equipped motorcycles