D.I.D. 520VX3X106FB Pro-Street X-Ring Drive Chain 520 Pitch 106 Links Natural Steel

The D.I.D. 520VX3X106FB is a 520-pitch, 106-link Pro-Street X-Ring drive chain in a natural steel finish. As D.I.D.'s most popular and widely used chain series, the VX3 delivers a significant performance upgrade over OEM chains and is well-suited for street, ATV, and off-road riding applications.

At the heart of this chain is D.I.D.'s patented X-Ring seal technology, which features four contact points that minimize friction while maximizing lubrication retention and dirt exclusion. Unlike standard O-ring designs that create pressure points and accelerate wear, the X-Ring's unique geometry twists between the side plates to evenly disperse pressure — resulting in a chain that lasts up to 2x longer than comparable O-ring chains.

The VX3 also introduces D.I.D.'s Direct Energy Transfer (DET) technology, which focuses on improving chain rigidity rather than relying solely on tensile strength. Increased rigidity reduces flex under load, delivering sharper throttle response, smoother power delivery, and reduced power loss between the engine and rear wheel.

Key Features:

• 520 Pitch — 106 links, natural steel finish
• Patented X-Ring seals — four contact points reduce friction and seal in lubrication
• 32% longer chain life than the previous VO Series
• Direct Energy Transfer (DET) technology increases rigidity for improved throttle response
• Average tensile strength: 8,210 lbs
• Chain width: 0.736 in
• Weight: 3.35 lbs per 100 links
• Rated for motorcycles and ATVs up to 800cc
• Includes a clip-style master link
• Made in Japan

The D.I.D. 520VX3 is an ideal upgrade for sport bikes, dual sport, and sport touring motorcycles seeking improved durability and performance over stock chains. Note: The included master link is not interchangeable with older D.I.D. "V" and "VM" style chains.