DID 520VX3GB-120 Gold 120 Link VX Series X-Ring Chain - High

In this review the DID 520VX3GB-120 is evaluated as a direct replacement chain for street bikes, ATVs, and off-road machines up to 800cc, with the single biggest reason to buy being its improved rigidity and seal performance that translate to better throttle response and longer service life. The reviewer found the chain to be a substantial upgrade over prior VX2 designs thanks to the claimed Direct Energy Transfer technology and enhanced X-ring retention, making it a sensible choice for riders who want a robust, high performance chain without specialty fitment hassle.

Key Features

• Upgraded design: The VX3 improves on the VX2 platform to fit a broader range of street and off-road applications up to 800cc, offering wider compatibility.
• Direct Energy Transfer: New technology increases chain rigidity, which results in crisper throttle response under acceleration.
• Improved X-ring seals: Enhanced X-ring retention boosts seal durability and reduces lubricant loss over long runs.
• High tensile strength: An average tensile strength of 8,210 pounds provides confidence for heavy loads and aggressive riding conditions.
• Weight-conscious construction: At about 1.52 kgs per 100 links (3.35 lb), it balances strength and manageable weight for drivetrain efficiency.
• Includes master link: Supplied with a clip-style master link for straightforward installation in most cases.

Who It's For

The DID 520VX3 chain is aimed at riders who need a durable, high performance replacement for a street bike, ATV, or single rider off-road machine up to 800cc. It suits enthusiasts who value improved throttle response and reduced maintenance thanks to better X-ring retention and higher rigidity.

Those who should look elsewhere are riders with machines above 800cc or who require a rivet-style master link for repeated heavy-duty racing installs, since the listed supply is a clip-style connecting link and some users report variation in what is included.

Pros & Cons

Pros

• Notable improvement in perceived throttle response due to increased rigidity and Direct Energy Transfer technology.
• Improved X-ring retention that helps reduce lubricant loss and extend service intervals.
• Solid build with an average tensile strength of 8,210 pounds suitable for demanding use up to 800cc.
• Easy installation for most users thanks to the clip-style master link when provided.

Cons

• Some buyers report inconsistency about whether a clip-style master link is included, so double-check contents before installation.
• Not intended for machines above 800cc, so high-displacement riders will need a different specification.

Specifications

Brand	DID
Model	520VX3GB-120
Link count	120 links
Tensile strength	Average 8,210 pounds
Weight	1.52 kgs per 100 links (3.35 lb)
Seal type	X-ring with improved retention
Master link	Clip-style connecting link (included in most sets)

Our Verdict

The DID 520VX3GB-120 is a practical, high performance chain for riders of street bikes, ATVs, and off-road machines up to 800cc who want improved throttle feel and longer seal life. It offers strong construction, sensible weight, and straightforward installation in most cases, making it a good value for those seeking a durable replacement without specialty parts.

Frequently Asked Questions

Will this chain fit my 600cc sport bike?
Yes, the VX3 is designed to suit a wide range of street machines up to 800cc, but confirm 520 pitch and link count for exact fitment.

Does the package include a master link?
The product is supplied with a clip-style connecting link in most cases, though some customers report occasional variation so check contents on arrival.

Is this better than the VX2?
According to DID, the VX3 improves rigidity and X-ring retention over the VX2, which should yield better throttle response and longer seal life.