REGINA 525 ZRE - Z-Ring Chain - 110 Links 137ZRE/011

Chain failure mid-race or mid-ride isn't an option. The REGINA 525 ZRE delivers the durability and consistent power transfer that separates reliable performance from catastrophic downtime. Built with a patented Z-ring seal design that maintains integrity over thousands of miles, this chain keeps your power where it belongs—on the pavement.

The Z44 seal technology uses a spring-effect mechanism that prevents seal degradation, while the enhanced flexibility reduces drivetrain stress and improves overall responsiveness. Pre-stretched and shot-peened for consistency, the 525 ZRE is engineered for riders and racers who demand precision without compromise.

• 525 pitch, 110 links
• Patented Z44 Z-ring seals
• High-alloy steel construction
• Solid bushings, rollers
• Shot-peened plates, pins
• Pre-stretched for performance
• Clip-type master link
• Gold finish
• Enhanced chain flexibility
• Seal durability guaranteed