For years, sprockets for sport ATV haven’t offered enough durability and performance at the same time, which is why I was excited to test the new options firsthand. After pushing each one through muddy trails and high-speed runs, I can say that the MRELC 420 Chain & Sprocket Set for 50cc-170cc Bikes & ATVs stood out. Its stainless steel sprockets and heavy-duty chain handled stress without corrosion, providing smooth power transfer even under rough conditions.
Compared to the simpler designs like the Bccxzm 428 13T 17mm Motorcycle Front Engine Sprocket or the Moroxi 420 14T, this set offers a more comprehensive upgrade. Its 35-tooth rear sprocket and 13-tooth front ensure better torque and acceleration. Plus, the included chain is easily adjustable and built to last, making installation straightforward for DIYers. Based on my testing, this product offers the best balance of quality, durability, and value for anyone serious about enhancing their sport ATV’s performance.
Top Recommendation: MRELC 420 Chain & Sprocket Set for 50cc-170cc Bikes & ATVs
Why We Recommend It: This set’s stainless steel sprockets deliver excellent corrosion and heat resistance, surpassing the others. Its 13-tooth front and 35-tooth rear sprockets optimize torque and acceleration, which I found noticeably improved handling and power. The included chain with 120 links is robust, adjustable, and designed for durability, giving a clear edge over the simpler, less comprehensive options like the Bccxzm sprocket or Moroxi’s model. Its versatility across engine sizes makes it our top pick for best overall value, quality, and performance.
Best sprockets for sport atv: Our Top 3 Picks
- Bccxzm 428 13T 17mm Motorcycle Front Engine Sprocket for – Best for ATV performance
- MRELC 420 Chain & Sprocket Set for 50cc-170cc Bikes & ATVs – Best sprockets for ATV off-road
- Moroxi 420 14T Motorcycle Front Engine Sprocket 17mm 50cc – Best sprockets for sport ATV upgrades
Bccxzm 428 13T 17mm Motorcycle Front Engine Sprocket for
- ✓ High-strength durable steel
- ✓ Easy installation
- ✓ Fits multiple vehicles
- ✕ Slight chain squeak
- ✕ Limited to 428 chain type
| Material | 45# Steel |
| Sprocket Thickness | 7mm |
| Number of Teeth | 13T |
| Chain Compatibility | 428 chain master link |
| Shaft Diameter | 17mm |
| Application Range | Fits 50cc to 125cc dirt bikes, mini bikes, ATVs, and 4-wheel go-karts |
When I first unboxed the Bccxzm 428 13T sprocket, I immediately noticed its solid build and the weight of the 45# steel material. It felt sturdy in my hand, and the precise machining of the teeth gave me confidence that it would hold up under rough riding conditions.
I measured the thickness right away and confirmed it’s a 428 sprocket with a 7mm profile, perfect for my mini bike setup.
Installing it was straightforward thanks to the octagonal wrench included, which fits snugly and makes the process quick. I appreciated how the sprocket’s 17mm master link hole lined up perfectly with my chain, making the fit seamless.
During my rides, I noticed that it smoothly engaged with the chain, with no slipping or wobbling, even at higher speeds.
At low speeds, I did hear a slight squeak from the chain, which is normal when parts start to wear. The sprocket’s high strength material helped resist deformation, so I felt confident it would last a good while.
I also liked that it fits a range of small sport vehicles, from dirt bikes to go-karts, giving it versatility.
Overall, this sprocket is a reliable upgrade for anyone needing a durable, well-made part. It’s a great value for under $8, especially considering the quality and ease of installation.
If your old sprocket is giving you vibrations or strange noises, this one might just be the fix you need.
MRELC 420 Chain & Sprocket Set for 50cc-170cc Bikes & ATVs
- ✓ Heavy-duty construction
- ✓ Easy to install
- ✓ Excellent corrosion resistance
- ✕ Slightly heavier than stock
- ✕ Compatibility check needed
| Chain Type | 420 heavy-duty chain with 120 links (60 internal, 60 external) |
| Chain Length | 120 links (adjustable with master link) |
| Front Sprocket | 13 teeth, 17mm mounting hole, made of stainless steel |
| Rear Sprocket | 35 teeth, 76mm inside diameter, made of stainless steel |
| Compatibility | Suitable for 50cc to 170cc dirt bikes, ATVs, go-karts, and mini bikes |
| Material | High-quality stainless steel for sprockets, durable high-strength steel for chain |
Imagine you’re out on a dusty trail with your ATV, pushing through some rough terrain, when suddenly your old sprocket shows signs of wear. You decide it’s time for an upgrade, so you pull out the MRELC 420 Chain & Sprocket Set.
The first thing you notice is how solid the components feel in your hands—stainless steel sprockets with a sleek, corrosion-resistant finish that promises durability.
Installation is surprisingly straightforward, even if you’re not a mechanic. The set includes all the necessary screws, spacers, and even a chain breaker, making it easy to customize the chain length.
The chain itself feels robust, with 120 links that can be adjusted smoothly using the master link, ensuring a perfect fit for your specific bike model.
Once installed, I immediately felt the difference in power transfer. The gear shift felt more precise, and acceleration responded quicker.
The 13-tooth front sprocket and 35-tooth rear sprocket combo seem optimized for a nice balance of speed and torque. Plus, the high-quality stainless steel resists rust, so you won’t have to worry about corrosion after riding through mud or rain.
What really stood out was how quiet and smooth the drivetrain became. It’s a noticeable upgrade from stock, especially if your old sprockets were worn down.
For DIY enthusiasts, this set offers a reliable, durable upgrade that doesn’t break the bank. It’s versatile enough for a range of bikes, making it a solid choice for anyone looking to boost their ATV or dirt bike’s performance.
Moroxi 420 14T Motorcycle Front Engine Sprocket 17mm 50cc
- ✓ Durable 45# Steel
- ✓ Easy to install
- ✓ Fits multiple bike sizes
- ✕ May wear faster with aggressive riding
- ✕ Limited to 14T only
| Sprocket Size | 420 pitch, 14 teeth |
| Inner Diameter | 17mm |
| Material | 45# Steel |
| Applicable Chain Type | 420 chain |
| Compatibility | 50cc to 150cc dirt bikes, mini bikes, ATVs, 4-wheel go-karts |
| Package Contents | 1 sprocket, 4 bolts, 2 mounts, 1 wrench, 1 420H link head |
As I grabbed the Moroxi 420 14T sprocket for the first time, I immediately noticed its sturdy build, feeling the solid 45# steel material in my hand. When I installed it on my mini bike, the fit was perfect—17mm inner diameter matching my chain master link with ease.
I was curious if it would handle the rougher rides, so I took it out on a demanding trail.
During my ride, I noticed how smoothly the sprocket engaged with the chain, thanks to its precise tooth count of 14. It felt responsive, with no slipping or grinding, even when I pushed the throttle hard.
I also appreciated the included bolts, mounts, and wrench—making installation straightforward without hunting for extras.
One thing that stood out was how well it handled vibrations and noise. I didn’t hear any squeaking or clicking, even when I coasted or slowed down.
That’s a big plus if you’re tired of noisy, squeaky sprockets ruining your ride.
Of course, at just $7.49, it’s an affordable upgrade that feels durable enough for regular use on 50cc to 150cc dirt bikes and ATVs. If your current sprocket is showing signs of wear or making noise, this one could really extend your bike’s lifespan and improve performance.
Overall, I’d say this sprocket offers solid strength, easy installation, and a good fit for a range of small bikes. It feels reliable and ready to withstand the bumps of off-road adventures.
What Are the Key Features of Quality Sprockets for Sport ATVs?
| Feature | Description | Importance |
|---|---|---|
| Material | High-strength steel or aluminum for durability. | Ensures longevity and resistance to wear. |
| Tooth Design | Varied tooth shapes for optimal performance. | Affects acceleration and speed capabilities. |
| Weight | Lightweight options to enhance handling. | Improves overall ATV agility and responsiveness. |
| Compatibility | Must fit specific ATV models correctly. | Ensures proper function and safety during use. |
| Gear Ratio | Specific gearing options for different performance needs. | Affects torque and speed balance for varied driving conditions. |
| Corrosion Resistance | Coatings or treatments to prevent rust and degradation. | Increases lifespan especially in wet or muddy conditions. |
| Finish | Powder-coated or anodized finishes for aesthetics and protection. | Enhances appearance and provides additional durability. |
How Do Different Sprocket Sizes Affect Sport ATV Performance?
Different sprocket sizes can significantly influence the performance of sport ATVs in various ways.
- Smaller Front Sprockets: Smaller front sprockets can improve acceleration by reducing the gear ratio, allowing the ATV to achieve higher RPMs more quickly.
- Larger Front Sprockets: Larger front sprockets provide better top speed since they increase the gear ratio, which can lead to improved performance in straight-line speed but may sacrifice acceleration.
- Smaller Rear Sprockets: Opting for a smaller rear sprocket also enhances acceleration and responsiveness, making the ATV feel more agile, particularly in tight turns or on rough terrain.
- Larger Rear Sprockets: A larger rear sprocket can improve torque, which is beneficial for climbing hills or navigating through obstacles, but it may reduce overall speed.
- Balanced Gear Ratios: Finding a balanced gear ratio by combining the right sizes of front and rear sprockets can optimize performance for a specific type of riding, whether it’s racing, trails, or freestyle.
- Material and Durability: The material of the sprockets also plays a role in performance; lighter materials may improve speed, while durable materials can withstand more wear and tear during aggressive riding.
What Materials Should You Look for in Sport ATV Sprockets?
The best sprockets for sport ATVs are typically made from durable materials that enhance performance and longevity.
- Steel: Steel sprockets are known for their strength and durability, making them an excellent choice for heavy-duty use. They can withstand high levels of stress and are less likely to wear down quickly, which is essential for sport ATVs that require reliable performance in demanding conditions.
- Aluminum: Aluminum sprockets are lightweight and provide improved acceleration due to their reduced mass. They are often used in competitive racing scenarios where every ounce matters, but they may wear out faster than steel, making them more suitable for recreational use rather than heavy-duty applications.
- Chrome-Moly Steel: This advanced alloy combines steel with chromium and molybdenum to enhance strength and resistance to wear. Chrome-moly sprockets are popular among racers for their ability to maintain structural integrity under extreme conditions, allowing for consistent performance over time.
- Carbon Fiber: While less common, carbon fiber sprockets offer exceptional lightweight properties and strength, often used in high-performance racing applications. They are expensive but provide superior performance and can significantly reduce the overall weight of the ATV, enhancing speed and agility.
- Composite Materials: Some modern sprockets are made from composite materials that blend various elements to achieve a balance of weight, strength, and durability. These sprockets can offer unique performance benefits and are often designed specifically for racers looking for a competitive edge.
How Can You Choose the Right Sprocket Ratio for Your Sport ATV?
Choosing the right sprocket ratio for your sport ATV is crucial for optimizing performance, speed, and torque.
- Understand Your Riding Style: Consider whether you prioritize acceleration or top speed. A lower sprocket ratio (larger rear sprocket or smaller front sprocket) generally enhances acceleration, making it suitable for trails and technical riding, while a higher ratio benefits top speed, ideal for racing or open terrains.
- Evaluate Terrain Conditions: Different terrains require different setups; softer, muddy, or hilly conditions may benefit from lower ratios for better torque, whereas flat and hard-packed surfaces may allow for higher ratios to maximize speed.
- Consult Manufacturer Recommendations: Check the ATV manufacturer’s specifications and guidelines, as they often provide optimal sprocket ratios based on the model and intended use, ensuring you don’t exceed the machine’s design capabilities.
- Consider Gear Wear and Maintenance: A significant change in sprocket ratios can lead to increased wear on the chain and sprockets. Assess the long-term maintenance implications, as a more aggressive setup may require more frequent replacements and adjustments.
- Test and Adjust: After installing a new sprocket setup, take the time to test your ATV under various conditions. This practical approach allows you to fine-tune the ratio based on real-world performance and personal preference.
What Are the Most Recommended Sprocket Brands by Professionals?
The most recommended sprocket brands by professionals for sport ATVs are:
- DID: DID is known for its high-quality manufacturing and precision engineering, making their sprockets durable and reliable under extreme conditions. Professionals often choose DID sprockets for their excellent performance and longevity, especially in competitive environments.
- Renthal sprockets are favored for their lightweight design and exceptional strength, which provides improved acceleration and handling. The brand is renowned for its innovative materials and techniques, ensuring that their sprockets can withstand the rigors of sport ATV racing.
- Sunstar: Sunstar offers a wide range of sprockets that are engineered for optimal performance, balancing weight and durability. Their products are often recommended by professionals for their precise fitment and the ability to enhance the overall performance of the ATV.
- Pro Taper: Pro Taper is celebrated for its cutting-edge technology and high-performance components, including sprockets that provide superior power transfer and reduced wear. Professionals appreciate Pro Taper’s attention to detail and commitment to quality, which translates into better handling and efficiency on the track.
- Vortex: Vortex sprockets are designed to deliver maximum strength and durability, making them a popular choice among competitive riders. Their unique design and high-grade materials ensure that these sprockets perform well even under the most demanding conditions, offering reliability and consistency.
What Maintenance Practices Can Extend the Life of Your Sport ATV Sprockets?
To extend the life of your sport ATV sprockets, several maintenance practices can be implemented:
- Regular Cleaning: Keeping your sprockets clean from dirt and debris can significantly enhance their lifespan. This prevents the buildup of grime that can wear down the teeth and affect performance.
- Proper Lubrication: Applying the right lubricant to your sprockets helps reduce friction and wear. It is essential to use a lubricant specifically designed for ATV chains and sprockets to ensure optimal performance.
- Chain Tension Adjustment: Maintaining the correct chain tension is crucial for even wear on the sprockets. An overly loose or tight chain can lead to premature wear and damage, so regular checks are necessary.
- Inspection for Wear: Regularly inspecting your sprockets for signs of wear or damage can help you catch problems early. Look for uneven tooth wear, which can indicate misalignment or chain issues that need to be addressed.
- Using Quality Parts: Investing in high-quality sprockets designed for sport ATVs ensures better durability and performance. The best sprockets are made from materials that withstand stress and resist wear over time.
- Avoiding Harsh Riding Conditions: Whenever possible, avoid riding in extreme conditions such as deep mud or sand. These environments can accelerate wear on the sprockets and chains, so choosing trails wisely can prolong their lifespan.
How Do Upgrading Sprockets Improve Overall Performance in Sport ATVs?
| Aspect | Effect of Upgrading Sprockets |
|---|---|
| Performance Improvement | Upgraded sprockets enhance overall power delivery, leading to better throttle response. |
| Durability | Higher quality materials in upgraded sprockets offer increased lifespan and resistance to wear. |
| Acceleration | Changing sprocket ratios can improve acceleration, making ATVs quicker off the line. |
| Top Speed | Optimizing sprocket size can either increase top speed or improve torque, depending on the setup. |
| Weight | Lighter sprockets reduce overall weight, contributing to improved agility and handling. |
| Fuel Efficiency | Upgraded sprockets can optimize engine performance, potentially improving fuel efficiency during operation. |
| Cost-effectiveness | Investing in quality sprockets may lead to lower maintenance costs over time due to enhanced durability. |