The Regina 520 ZRA Drive Chain Black Dual is designed for riders who want long service life, stable chain tension and dependable power transfer in demanding conditions. Thanks to its Z-Ring seal design and performance-enhancing pre-stretching, it helps maintain lubrication longer, reduces elongation over time, and supports smoother, more consistent drivetrain performance.
Built from high-carbon alloy steel and engineered with solid bushings and rollers, this chain is made to handle repeated load cycles with excellent fatigue resistance. Shot-peened plates, pins and rollers strengthen critical components, while laser markings on the outer plates make identification quick and clear.
Key features:
✅ Manufactured with high carbon alloy steel components
✅ Solid bushings and rollers with shot-peened plates, pins and rollers for high fatigue resistance
✅ Z-Ring seals and pre-stretching for high mileage, reduced elongation and extended lubrication intervals
Benefits of use:
🔹 Longer-lasting drivetrain thanks to improved wear control and reduced stretching
🔹 Less maintenance with extended lubrication intervals from sealed Z-Ring design
🔹 Confidence under load with strong construction and high tensile strength for up to 600 cc applications
Technical specifications:
📌 Brand: REGINA
📌 Chain size/type: 520 / 520 ZRA
📌 Number of links: 114
📌 Seal type: Z-Ring
📌 Master link connector type: Rivet
📌 Tensile strength: 33.8 kN (7598 lb)
📌 Material: Steel
📌 Max displacement (street/off-road): 600 cc
📌 Weight: 1.59 kg / 100 links
📌 Vendor part number: 135ZRA/1010
Why choose this product?
⭐ Built for riders who want durability, high mileage and reduced elongation
⭐ Premium Regina construction with proven sealed-chain technology for consistent performance
⭐ Ideal upgrade or replacement when you want a stronger, longer-lasting 520 sealed drive chain
