At DMG Motorsports, we present the RK EXCEL 520 SO Steel Drive Chain — a smart, performance-minded choice for riders seeking the perfect balance of reliability and affordability. RK EXCEL's traditional round O-ring design uses a Nitrile Butadiene O-ring to seal in lubrication, ensuring smooth power delivery while keeping seal ring drag and horsepower loss to a minimum. Available in natural finish, the 520SO is engineered for low to mid-range CC motorcycles that came from the factory with sealed chains, and is equally at home on the street or off-road — up to 400cc. With multiple length options and master link variants to choose from, getting the right fit for your ride has never been easier.

Features:

• Traditional round O-ring chain construction for a convenient blend of performance and affordability
• Nitrile Butadiene O-ring seals in lubrication for smooth power delivery with minimal seal ring drag or horsepower loss
• Suitable for low to mid-range CC motorcycles originally equipped with sealed chains
• Approved for both street and off-road/ATV use up to 400cc
• Tensile strength: 6,900 lbs
• Max horsepower: 60 HP
• Max chain width: 21.7mm
• Weight: 3.39 lbs
• Available in natural finish only
• Multiple length options available: 100, 104, 106, 110, 112, 114, 116, 120, and 130 links
• Master link included (clip type); clip or rivet master link options available