520 EXW Drive Chain

The RK 520 EXW drive chain is designed for riders who demand dependable power transfer in harsh off-road conditions. Built to handle high speeds and extreme heat, it’s a strong choice for motocross and enduro bikes—especially larger cc machines—where durability and consistent performance matter most.

Thanks to RK’s pre-stressed and pre-stretched manufacturing process, the chain delivers more even load distribution across the links, helping to reduce stretching over time and keeping maintenance to a minimum. With shot-peened and heat-treated components made from high-grade medium carbon alloy steel, the EXW Series is engineered to stand up to hard riding, roost, mud, and long service intervals.

Key features:

• ✅ Pre-stressed and pre-stretched for equal load distribution and minimal maintenance
• ✅ High-grade medium carbon alloy steel with shot-peened and heat-treated components
• ✅ High-speed and extreme-heat performance for demanding off-road use

Benefits of use:

• 🔹 More consistent drivetrain performance under heavy load
• 🔹 Improved durability for aggressive riding and longer intervals between adjustments
• 🔹 Ideal for bigger off-road engines—rated up to 750 cc (off-road)

Technical specifications:

• 📌 Chain size/type: 520 / 520 EXW (EXW Series)
• 📌 Number of links: 114
• 📌 Seal type: W-Ring
• 📌 Tensile strength: 34.3 kN (7701 lb)
• 📌 Master link: Clip connector (included)
• 📌 Material: Carbon alloy steel
• 📌 Color/finish: Natural
• 📌 Weight: 1.67 kg per 100 links

Why choose this product?
⭐ Built with proven RK manufacturing for strength and reliability in tough off-road conditions
⭐ Designed for extreme heat and high-speed performance where standard chains can wear faster
⭐ Includes a clip master link for straightforward installation