Description
Pro-X 520 Gold Chain for ATV and Motocross Applications
The Pro-X 520 Gold Chain is a premium-quality drive chain designed for demanding ATV, motocross, and off-road motorcycle use. Manufactured for Pro-X by a leading Japanese OEM chain factory, it combines high-grade Japanese steel with strong, lightweight construction.
This chain contains 120 links and must be shortened to fit your specific machine. Its additional length makes it an excellent choice for many stock and extended-swingarm applications, including Yamaha Blasters equipped with up to a +4-inch extended swingarm.
High-Strength Japanese Construction
The Pro-X 520 Gold Chain is manufactured from high-grade Japanese steel for dependable strength and wear resistance. Its pins receive a specialized surface-hardening treatment that creates a hard exterior while retaining a more flexible core.
This construction helps the chain resist surface wear without making the pins excessively brittle. Heavy press-fit pins and quad-staked riveting provide secure connections between the individual chain links.
The solid bushings, rollers, and side plates are heat-treated to improve strength and durability. Shot-peened solid rollers help the chain withstand the repeated loading produced by off-road riding, hard acceleration, jumping, and changing traction conditions.
Lightweight MX Chain Design
Pro-X designed this 520 MX chain to provide strength without unnecessary weight. The specially shaped inner plates and lightening holes reduce overall chain weight while maintaining the strength required for off-road use.
The gold-finished outer plates also give the chain a clean performance appearance that complements aftermarket sprockets, extended swingarms, and other drivetrain upgrades.
Pre-Stretched for Easier Adjustment
Every Pro-X 520 Gold Chain is pre-stressed and pre-stretched during manufacturing. This process helps reduce the initial chain stretch commonly experienced after installing a new drive chain.
Some adjustment may still be required after the first ride. Check chain slack after the initial heat cycle and periodically throughout the chain’s service life.
Yamaha Blaster Chain Fitment
The Pro-X 520 Gold Chain can be used on Yamaha Blaster models equipped with compatible 520 front and rear sprockets.
Because this chain contains 120 links, it provides enough length for many modified Yamaha Blasters, including machines using up to a +4-inch extended swingarm. The chain must be cut to the correct length during installation.
The exact number of links required depends on:
- Swingarm length
- Front sprocket size
- Rear sprocket size
- Rear axle position
- Chain-adjuster position
Always place the chain around both sprockets and confirm the required length before removing any links.
Pro-X 520 Gold Chain Features
- Premium Pro-X MX roller chain
- Standard 520 chain size
- 120-link starting length
- Gold-finished outer plates
- High-grade Japanese steel
- Heat-treated side plates
- Heat-treated solid bushings
- Shot-peened solid rollers
- Surface-hardened chain pins
- Heavy press-fit pin construction
- Quad-staked riveting
- Lightweight inner-plate design
- Pre-stressed and pre-stretched
- Clip-style master link included
- Designed for ATV and motorcycle use
- Suitable for stock and extended swingarms
- Must be shortened to the required length
Product Specifications
| Specification | Details |
|---|---|
| Brand | Pro-X Racing Parts |
| Product | MX Roller Chain |
| Chain Size | 520 |
| Chain Length | 120 Links |
| Color | Gold |
| Master Link | Clip Style |
| Material | High-Grade Japanese Steel |
| Manufacturer Part Number | 07.RC520120CG |
| Installation | Must Be Shortened to Fit |
| Yamaha Blaster Use | Stock and Extended Swingarm Applications |
Installation Recommendations
Use a proper motorcycle chain breaker when shortening the Pro-X 520 Gold Chain. Do not grind or cut through adjacent links that will remain part of the finished chain.
Install the closed end of the master-link clip facing the chain’s normal direction of travel. Confirm that the clip is completely seated in both pin grooves before operating the machine.
Adjust chain slack according to the vehicle manufacturer’s specifications. Rotate the rear wheels and check the chain at several points because chain tension can vary as the drivetrain rotates.
Inspect the front and rear sprockets before installing a new chain. Hooked, pointed, damaged, or excessively worn sprocket teeth can quickly damage a new chain. For the best drivetrain life, replace worn sprockets at the same time as the chain.
What’s Included?
- One Pro-X 520 Gold Chain with 120 links
- One clip-style master link
Frequently Asked Questions
Does the Pro-X 520 Gold Chain fit a Yamaha Blaster?
Yes. This 520-size chain can be used on Yamaha Blasters with compatible 520 sprockets. It must be shortened to the correct length during installation.
Will this chain fit a +4 Yamaha Blaster swingarm?
The 120-link chain provides sufficient length for many Yamaha Blaster applications using up to a +4-inch extended swingarm. Final chain length depends on the installed sprocket sizes and axle position.
Does the chain need to be shortened?
Yes. The Pro-X 520 Gold Chain is supplied with 120 links and must be shortened for most applications.
Is a master link included?
Yes. A clip-style connecting master link is included.
Is this an O-ring or X-ring chain?
No. This is a standard Pro-X MX roller chain. It should not be listed as an O-ring or X-ring chain.
Should I replace my sprockets?
Replace any sprockets with hooked, pointed, unevenly worn, or damaged teeth. Worn sprockets can cause rapid wear to a new chain.
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