Main advantage: The RK 520 EXW Drive Chain is designed for riders who want dependable power transfer and long service life in harsh motocross and enduro conditions. With a sealed W-Ring design and high-strength construction, it helps reduce wear while keeping performance consistent at speed and under extreme heat. Pre-stressed and pre-stretched from the factory, it distributes load evenly and minimizes the need for constant adjustment.
If you’re dealing with frequent chain stretch, inconsistent drivetrain feel, or accelerated wear in mud, dust, and heat, this chain is a strong upgrade. It’s engineered to handle large-displacement off-road engines while maintaining smooth drive and durability—ideal for riders who push hard and expect their drivetrain to keep up.
Key features:
✅ Pre-stressed & pre-stretched: Helps ensure equal load distribution and reduced maintenance
✅ High-grade carbon alloy steel: Shot-peened and heat-treated components for strength and durability
✅ High heat/high-speed capability: Built for demanding off-road performance
Benefits of use:
🔹 Longer-lasting drivetrain: Sealed W-Ring design helps retain lubrication and resist contamination
🔹 More consistent power delivery: Stable performance under load for better ride feel
🔹 Ready-to-install convenience: Includes a clip-type connecting link
Technical specifications:
📌 Brand: RK
📌 Series/Model: EXW Series
📌 Chain size/type: 520 / 520 EXW
📌 Links: 114
📌 Seal type: W-Ring
📌 Master link: Clip type (included)
📌 Material: Carbon alloy steel
📌 Tensile strength: 34.3 kN (7701 lb)
📌 Max engine displacement (off-road): up to 750 cc
📌 Color/finish: Black / Gold
📌 Weight: 1.67 kg / 100 links
Why choose this product?
⭐ Built for demanding off-road use with premium materials and heat treatment for durability
⭐ Factory pre-stressing/pre-stretching supports stable performance and reduced adjustments
⭐ A proven choice for riders who want strength, sealing and reliability in one chain
