At DMG Motorsports, we present the D.I.D Exclusive Racing Chain Master Link — the trusted replacement connecting link engineered to match the world-class quality of D.I.D's legendary Exclusive Racing chain lineup. Whether you're a factory-supported racer or a weekend warrior looking to keep your drivetrain in peak condition, this master link is purpose-built to deliver the same precision fit and performance as every link in your D.I.D chain. Available across the most popular 520-pitch chain models — including the 520ERT3 (D.I.D's #1 selling motocross chain, trusted by Monster Energy Kawasaki, Star Racing Yamaha, Honda HRC, Red Bull KTM, and more), the 520ERV3 (a high-performance X-ring sealed race chain), and the 520DZ2 (a budget-friendly, high-performance non-sealed racing chain) — and offered in both clip and rivet styles with gold finish options, this master link has every Exclusive Racing Series rider covered.

Features:

• Exclusive Racing Series compatibility: Precisely engineered replacement connecting links for D.I.D's 520ERT3, 520ERV3, and 520DZ2 chain models — maintaining full chain integrity.
• Multiple style options: Available in both clip-type and rivet-type configurations, as well as gold-finish variants, to suit your preference and application.
• Premium strength: Exclusive Racing sealed master links are premium connecting links built for greater tensile strength and optimal performance — with new X-rings included on sealed variants.
• Rivet link precision: The rivet-type master link features a unique pin head designed to be precisely riveted in a uniform circular configuration, adding superior strength when used with the D.I.D KM500 chain tool.
• SDH pin technology (520DZ2): The 520DZ2 master link benefits from SDH pin technology that delivers great tensile strength and longer chain life compared to a standard non-sealed chain.
• X-ring sealing technology (520ERV3): The patented X-ring design features four contact points that greatly increase sealing performance — keeping dirt out and lubrication in far more effectively than standard O-ring designs.
• Factory race team proven: The 520ERT3 is the go-to chain for riders across multiple racing disciplines thanks to its outstanding strength-to-weight ratio, especially popular in the 250 class.
• Model-specific fitment: Master links are NOT interchangeable between chain models — always use the connecting link designed specifically for your chain series.
• Sold individually: One master link per package, making it easy to stock a spare for race day or trail riding peace of mind.