The DID VX3 520 Chain (520VX3) is a VX Series drive chain designed as a great upgrade from OEM and is the most popular and widely used chain option noted for both on- and off-road bikes. Built around DID’s patented X-Ring seal technology, the 520VX3 is engineered to deliver 32% longer chain life than the VO Series while helping reduce friction and keep performance consistent. It also features increased rigidity to reduce flex, contributing to a more responsive and smooth driving experience. This listing is for a 120-link chain, making it a solid choice when you want dependable power transfer and long service life from your drivetrain.
The 520VX3 uses DID’s patented X-Ring seal technology to help retain lubrication and protect internal components. Compared to the VO Series, this design is stated to deliver 32% longer chain life, making it a strong option when you’re looking for a durability-focused chain upgrade for regular riding and varied conditions.
Increased rigidity is built into the VX Series design to reduce chain flex under load. By minimizing flex, the chain helps provide a more responsive and smooth driving experience, supporting consistent power transfer whether the bike is being used on-road or off-road.
This chain is supplied in a 120 Links length, giving you the specified link count needed for setups that call for a 120-link 520 chain. Confirm final fitment and required chain length for your specific gearing and application before installation.
The VX Series chain is described as a great chain upgrade from OEM and the most popular and widely used chain on both on- and off-road bikes. The 520VX3 model builds on this with patented X-Ring seal technology for extended service life and increased rigidity to reduce flex for a smooth, responsive feel.
Additional specifications are provided in the table below.
| Chain model | 520VX3 |
|---|---|
| Link count | 120 Links |
| Max CC: | 800cc |
| Tensile Strength: | 8,210 lbs |
| Weight (100L): | 3.35 lbs |
| Seal: | X-Ring |
| Chain Life Index: | 3500 |
| Pin Length: | 0.736" |
| Pin Diameter: | 0.206" |
| Inner Plate Thickness: | 2 |
| Outer Plate Thickness: | 2 |
