At DMG Motorsports, we present the D.I.D 520ERV7 Racing Chain — the undisputed top-of-the-line choice for serious racers and performance riders the world over. Whether you're pounding laps on the track or pushing the limits off-road, this is the chain trusted by the world's most elite factory teams in MotoGP, WSBK, MotoAmerica, Superbike, SX/MX, and off-road enduro series. Engineered as a major leap forward from the acclaimed ERV3, the 520ERV7 delivers measurable gains in tensile strength, chain longevity, and friction reduction — giving you the competitive edge when it matters most. Available in striking gold/gold finish across a range of link counts (110L through 124L) to suit your exact build.

Features:

• Grand Prix-Proven Performance: The chosen chain of MotoGP, WSBK, MotoAmerica, and Superbike factory teams worldwide, including the Honda HRC, Yamaha, and Ducati factory squads.
• Patented X-Ring Seal Technology: D.I.D's exclusive X-Ring design minimizes friction and protects against contaminants for longer, trouble-free performance.
• 3% Higher Tensile Strength vs. ERV3: Reinforced inner side plates and thicker/larger diameter pins boost tensile strength — rated up to 8,800 lbs. and suitable for motorcycles up to 1000cc.
• 13% Longer Chain Life vs. ERV3: Improved X-Ring durability delivers significantly increased wear resistance over the previous generation.
• Reduced Friction: Advanced X-Ring material improvements result in less friction than the ERV3, translating to more efficient power delivery.
• Increased Pin Diameter: The larger pin diameter improves chain rigidity for a more direct, responsive operation feel.
• 520 Size Standard: Pitch of 15.88mm, inner width of 6.35mm, and roller diameter of 10.16mm for a precise fit across a wide range of motorcycles.
• Gold/Gold Finish: Premium gold inner and outer plates give this chain a distinctive, race-ready appearance.
• Includes Rivet-Type Master Link: Each chain comes supplied with a rivet-style master link for a secure, competition-grade connection.
• Made in Japan: Built to D.I.D's exacting Japanese manufacturing standards for unmatched quality and reliability.
• Multiple Link Lengths Available: Choose from 110L, 112L, 114L, 116L, 118L, 120L, or 124L to match your specific application.