We researched and compared the top chains for dirt bikes using manufacturer specifications, industry standards, and aggregated owner feedback. Our evaluation focuses on strength, wear resistance, and ease of maintenance to help you find the right chain for your riding style and budget.
| Photo | Product | Score | Buy |
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DID ERT2 520 Chain Best Overall 520 pitch, 120 links, X-ring sealed, tensile strength 8,900 lbs |
9.2 | 🛒 Check Price |
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RK Racing Chain GB520MXU Best Value 520 pitch, 120 links, O-ring sealed, tensile strength 8,300 lbs |
8.7 | 🛒 Check Price |
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Renthal R1 520 Chain Premium Pick 520 pitch, 120 links, X-ring sealed, tensile strength 9,200 lbs |
9.0 | 🛒 Check Price |
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DID 520VT2 X-Ring Chain Great For Trail Riding 520 pitch, 120 links, X-ring sealed, tensile strength 8,500 lbs |
8.4 | 🛒 Check Price |
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Tsubaki Sigma 520 Chain Lightweight Option 520 pitch, 120 links, non-sealed, tensile strength 7,800 lbs |
8.1 | 🛒 Check Price |
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Sunstar Works 520 Chain Budget Friendly 520 pitch, 120 links, O-ring sealed, tensile strength 7,500 lbs |
7.8 | 🛒 Check Price |
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JT Sprockets JTA520 Chain Entry Level 520 pitch, 120 links, non-sealed, tensile strength 7,200 lbs |
7.3 | 🛒 Check Price |
1. DID ERT2 520 Chain: Best Overall
The DID ERT2 is a premium X-ring chain that excels in durability and performance. In our evaluation, it demonstrated exceptional resistance to stretch and wear, even under aggressive riding conditions. The shot-peened pins and heat-treated side plates contribute to its long service life, making it a favorite among serious off-road enthusiasts. Owner feedback consistently highlights its ability to maintain tension over many hours of use.
However, the ERT2 comes at a premium price. Riders on a strict budget or those with low-horsepower bikes may find better value elsewhere. It is best suited for intermediate to expert riders who demand maximum reliability and are willing to invest in their drivetrain.
- X-ring design retains grease for longer life and low friction
- Shot-peened pins and side plates for fatigue resistance
- Smooth power delivery with minimal stretch over time
Pros: Excellent durability and stretch resistance; Smooth operation reduces sprocket wear
Cons: Higher initial investment compared to standard chains
2. RK Racing Chain GB520MXU: Best Value
The RK GB520MXU offers a strong performance-to-price ratio that appeals to a wide range of riders. Our research shows it delivers reliable sealing and consistent tension over its lifespan, with many owners reporting solid performance for recreational and trail riding. The nickel plating helps prevent rust, adding to its longevity in wet or muddy conditions.
That said, the O-ring design is not as efficient as premium X-rings at retaining grease, so it may require more frequent lubrication. Riders who ride in extremely abrasive or high-heat environments might want to step up to a higher-tier chain. It is an ideal choice for weekend warriors and budget-conscious riders.
- O-ring design with good dirt and moisture sealing
- Nickel-plated side plates for corrosion resistance
- Reliable performance at a competitive price point
Pros: Great balance of cost and durability; Corrosion-resistant plating holds up well
Cons: O-rings are less effective than X-rings in extreme conditions
3. Renthal R1 520 Chain: Premium Pick
The Renthal R1 is built for high-performance and aggressive riding. With a tensile strength of 9,200 lbs, it is one of the strongest 520 chains available. Our evaluation of owner reports indicates that it handles the torque of big-bore bikes without excessive stretch, and the X-ring design keeps dirt out effectively. Many racers and hard enduro riders consider it a top-tier choice.
However, its premium pricing puts it out of reach for budget buyers. Additionally, some owners note that the chain can be slightly stiff initially, requiring careful adjustment. It is best for riders with high-horsepower dirt bikes who prioritize strength and minimal maintenance over cost.
- Highest tensile strength in its class for extreme loads
- X-ring seals with low-friction grease for reduced drag
- Pre-stretched and pre-lubed for immediate use
Pros: Exceptional strength for high-power bikes; Minimal break-in stretch required
Cons: Premium price may not suit casual riders
4. DID 520VT2 X-Ring Chain: Great For Trail Riding
The DID 520VT2 is a solid all-rounder that performs well in typical trail riding scenarios. Our research indicates it offers dependable sealing and consistent tension, with owner feedback praising its longevity under moderate use. The heat-treated components help resist wear, making it a good upgrade over stock chains.
That said, it may not hold up as well under extreme loads or frequent racing. Riders who push their bikes hard or ride in very muddy conditions might experience faster wear. It is an excellent choice for recreational trail riders who want X-ring reliability without the highest price.
- X-ring seals with high grease retention
- Heat-treated pins and bushings for long life
- Good balance of performance and affordability
Pros: Reliable X-ring sealing for trail conditions; Durable construction at a mid-range price
Cons: Not as strong as top-tier racing chains
5. Tsubaki Sigma 520 Chain: Lightweight Option
The Tsubaki Sigma is a lightweight non-sealed chain designed for racers seeking every advantage. In our evaluation, it offers a low weight that can improve throttle response and acceleration. The alloy steel construction provides decent strength, and owner feedback from motocross riders indicates it performs well in short-duration events.
However, the lack of seals means it requires frequent cleaning and lubrication, especially in dusty or wet conditions. It is not suitable for trail riders who want low maintenance. This chain is best for competitive racers who prioritize weight and are diligent about drivetrain care.
- Lightweight design reduces rotating mass
- High-strength alloy steel construction
- Ideal for racing where weight savings matter
Pros: Noticeable weight reduction for better acceleration; Good tensile strength for its weight
Cons: No seals means more frequent maintenance
6. Sunstar Works 520 Chain: Budget Friendly
The Sunstar Works chain is an economical option for riders on a tight budget. Our research shows it offers adequate performance for 125cc to 250cc dirt bikes, with O-rings that help keep grit out. Owner feedback indicates it is a decent replacement for worn stock chains on less demanding machines.
However, its lower tensile strength means it may stretch or wear faster on higher-power bikes. Riders with 450cc or larger engines should consider a stronger chain. It is best for beginners or those riding small-displacement bikes who want a functional chain at a low cost.
- Affordable O-ring chain for entry-level riders
- Decent corrosion resistance with plating
- Suitable for smaller displacement engines
Pros: Low price makes it accessible; O-rings provide basic dirt protection
Cons: Lower tensile strength limits use on powerful bikes
7. JT Sprockets JTA520 Chain: Entry Level
The JT JTA520 is a basic non-sealed chain that gets the job done for light, occasional riding. Our evaluation indicates it is suitable for pit bikes or small trail bikes where demands are low. Owner feedback suggests it works fine for casual use but requires frequent lubrication to avoid rapid wear.
It is not designed for aggressive riding or high-horsepower engines. Riders who ride regularly or in harsh conditions will likely need to replace it sooner than other options. This chain is best for budget-conscious beginners or as a temporary replacement.
- Basic non-sealed chain for light use
- Carbon steel construction with standard pins
- Affordable option for occasional riders
Pros: Very low cost for entry-level buyers; Simple design easy to install
Cons: Short lifespan without regular maintenance
Frequently Asked Questions
What chain size do I need for my dirt bike?
Most dirt bikes use a 520 pitch chain, but always check your owner’s manual or the side of your existing chain for the size (e.g., 520, 525, 530). The number of links also varies by bike model and sprocket setup. We recommend counting the links on your current chain or consulting a fitment guide.
What is the difference between O-ring, X-ring, and non-sealed chains?
O-ring and X-ring chains have rubber seals between the inner and outer plates to retain grease and keep dirt out. X-rings have a cross-section that reduces friction and lasts longer. Non-sealed chains lack these seals, making them lighter but requiring more frequent lubrication. For most dirt riders, sealed chains (O-ring or X-ring) are preferred for longevity.
How often should I replace my dirt bike chain?
Replacement intervals vary based on riding conditions and maintenance. A well-maintained sealed chain can last 100-200 hours of riding, while non-sealed chains may need replacement sooner. Signs of wear include tight spots, excessive stretch, or damaged rollers. We recommend checking chain tension and wear regularly.
Can I use a 520 chain on a bike that came with a 525?
Yes, but you must also change the front and rear sprockets to match the 520 pitch. The 520 chain is narrower and lighter, which can reduce rotating mass. However, it has a lower tensile strength, so ensure it is suitable for your bike’s power output.
How do I properly maintain my dirt bike chain?
Clean the chain regularly with a dedicated chain cleaner and brush, then apply a quality chain lube after every ride or as needed. Adjust tension according to your bike’s specifications, typically with 1-2 inches of slack at the midpoint. Replace the chain if it shows signs of wear or stretch beyond the service limit.
Our Verdict
After researching and comparing the top chains, the DID ERT2 stands out as the best overall for its exceptional durability and stretch resistance, making it ideal for serious riders. For those seeking great value, the RK GB520MXU offers reliable performance at a more accessible price point. Choose based on your riding intensity and budget.
