We researched and compared the top gas tanks for dirt bikes, evaluating manufacturer specs, industry standards, and aggregated owner feedback. Our guide highlights the best options for capacity, durability, and ease of installation. Whether you need a larger tank for extended trail rides or a lightweight replacement for racing, we have you covered.

Photo Product Score Buy
IMS Racing Oversized Fuel Tank IMS Racing Oversized Fuel Tank
Best Overall
3.0 gallon capacity, cross-linked polyethylene
9.0 🛒 Check Price
Clarke Manufacturing Oversized Fuel Tank Clarke Manufacturing Oversized Fuel Tank
Best Value
2.9 gallon capacity, polyethylene
8.7 🛒 Check Price
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Acerbis 3.0 Gallon Fuel Tank
Premium Build
3.0 gallon capacity, cross-linked polyethylene, Italian made
8.4 🛒 Check Price
🚗
IMS 2.6 Gallon Standard Capacity Tank
Lightweight Choice
2.6 gallon capacity, lightweight polyethylene
8.1 🛒 Check Price
Clarke 2.5 Gallon Standard Tank Clarke 2.5 Gallon Standard Tank
Budget Pick
2.5 gallon capacity, polyethylene, USA made
7.8 🛒 Check Price
Acerbis 2.5 Gallon Supermoto Tank Acerbis 2.5 Gallon Supermoto Tank
Supermoto Special
2.5 gallon capacity, polyethylene, supermoto-specific design
7.3 🛒 Check Price
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TM Designworks Factory Oversized Tank
Racing Grade
3.2 gallon capacity, cross-linked polyethylene, racing focus
7.0 🛒 Check Price

1. IMS Racing Oversized Fuel Tank: Best Overall

IMS Racing Oversized Fuel Tank

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We researched the IMS Racing Oversized Fuel Tank and found it to be a top contender for riders seeking maximum range. With a 3.0-gallon capacity, it offers a substantial increase over stock while maintaining a slim profile. The cross-linked polyethylene material is highly resistant to impacts and fuel permeation, meeting industry durability standards. Owner feedback consistently praises the tank’s fitment and the included hardware, which simplifies the swap.

However, the premium price may be a barrier for casual riders. Additionally, some owners reported that the tank can slightly interfere with the steering lock on certain models. If you primarily do short motocross sessions and don’t need extra range, this tank may be overkill. It is best suited for enduro and trail riders who prioritize long-distance capability.

  • Increases fuel capacity by up to 50% over stock without altering riding position.
  • Durable cross-linked polyethylene construction resists impact and UV damage.
  • Includes all necessary hardware and pre-installed petcock for easy installation.

Pros: Significant range extension for long rides.; Robust build quality with consistent fitment reported by owners.
Cons: Higher price point compared to standard tanks.; May require slight modification on some bike models.

2. Clarke Manufacturing Oversized Fuel Tank: Best Value

Clarke Manufacturing Oversized Fuel Tank

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Our research shows the Clarke Manufacturing Oversized Fuel Tank offers the best balance of cost and capacity. At 2.9 gallons, it provides a noticeable range boost without breaking the bank. The polyethylene construction is adequate for most trail riding conditions, and the direct bolt-on design is appreciated by owners who want a hassle-free upgrade. Industry standards for fuel tank materials are met, though cross-linked versions offer higher impact resistance.

The main trade-off is long-term durability: some owners noted that the tank can become brittle in extreme cold and may develop minor permeation odor after a few years. If you ride in harsh conditions or want a tank that lasts a decade, consider a more premium option. This tank is ideal for budget-conscious riders who need extra fuel for weekend adventures.

  • Affordable oversized option with 2.9 gallon capacity for extended rides.
  • Direct bolt-on design with no modifications needed on most models.
  • Made in the USA from durable polyethylene with UV stabilizers.

Pros: Excellent value for the capacity increase.; Simple installation with clear instructions.
Cons: Slightly less durable than cross-linked polyethylene tanks.; Some owners report slight fuel odor over time.

3. Acerbis 3.0 Gallon Fuel Tank: Premium Build

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We evaluated the Acerbis 3.0 Gallon Fuel Tank and found it to be a premium option for riders who value build quality and design. The cross-linked polyethylene construction is among the best in the industry, offering exceptional impact and chemical resistance. The ergonomic shaping is a standout, providing better knee grip and a more natural riding position. Owner feedback highlights the tank’s durability even after years of hard use.

However, the premium comes at a cost, making it less accessible for budget-minded buyers. Additionally, the integrated fuel gauge window, while useful, is a potential weak point as it can scratch and become less clear over time. If you are a competitive enduro rider who demands the best materials and fit, this tank is worth the investment. Casual riders may find better value elsewhere.

  • Italian-made with high-quality cross-linked polyethylene for superior durability.
  • Ergonomic shape allows for better knee grip and rider movement.
  • Integrated fuel gauge window for easy monitoring.

Pros: Excellent build quality and material resistance.; Sleek design that enhances bike aesthetics.
Cons: Higher price than many competitors.; Fuel gauge window can be prone to scratching.

4. IMS 2.6 Gallon Standard Capacity Tank: Lightweight Choice

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The IMS 2.6 Gallon Standard Capacity Tank is a solid choice for riders who prioritize weight savings over maximum range. We found it to be a direct replacement that shaves off some pounds compared to stock tanks, which can improve handling and reduce fatigue. The polyethylene material is adequate for typical trail use, and owner reviews confirm a straightforward installation process. It meets basic safety standards for fuel containment.

On the downside, the capacity increase is modest, so it may not be sufficient for long-distance enduro events. The material is also less durable than cross-linked options, meaning it can crack under severe impact. If you are a motocross racer looking to shed weight without sacrificing too much range, this tank is a good fit. For extended backcountry rides, consider a larger tank.

  • Lighter than stock for improved handling and reduced weight.
  • Direct replacement with no modifications required.
  • Compatible with most aftermarket accessories.

Pros: Weight savings noticeable during aggressive riding.; Easy installation with included hardware.
Cons: Only a modest capacity increase over stock.; Not as impact-resistant as cross-linked tanks.

5. Clarke 2.5 Gallon Standard Tank: Budget Pick

Clarke 2.5 Gallon Standard Tank

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Our research identified the Clarke 2.5 Gallon Standard Tank as an entry-level option for riders on a tight budget. It serves as a decent replacement for a damaged stock tank, offering a slight capacity bump. The polyethylene construction meets basic standards, but it lacks the impact resistance of cross-linked alternatives. Owner feedback indicates that the tank fits well on most models but may show signs of wear sooner than premium tanks.

The main limitation is the modest capacity, which won’t satisfy riders who need extended range. Additionally, the material can become brittle with prolonged sun exposure, leading to potential cracking. If you are a casual rider who only does short loops or practices, this tank provides acceptable value. Serious trail riders should invest in a larger, more durable option.

  • Budget-friendly option for riders needing a replacement tank.
  • Made in the USA from standard polyethylene.
  • Simple bolt-on design with basic hardware included.

Pros: Lowest price point among quality tanks.; Adequate for short rides and practice sessions.
Cons: Limited capacity increase; not for long-distance.; Less durable material prone to UV degradation over time.

6. Acerbis 2.5 Gallon Supermoto Tank: Supermoto Special

Acerbis 2.5 Gallon Supermoto Tank

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The Acerbis 2.5 Gallon Supermoto Tank is tailored for supermoto enthusiasts who need a slim, lightweight tank for street and track use. We found its design prioritizes rider ergonomics, allowing better knee grip and movement. The polyethylene construction is adequate for paved surfaces but less suited for off-road impacts. Owner reviews from supermoto riders praise the fit and finish, though some note that the tank can be difficult to install on certain models.

However, the capacity is limited to 2.5 gallons, which may not be enough for longer rides. The price per gallon is higher than many off-road tanks, reducing its value. If you primarily ride supermoto on pavement and value a sleek profile, this tank is a good match. For dual-sport or enduro use, we recommend a larger, more durable option.

  • Designed for supermoto bikes with a narrower profile.
  • Lightweight construction suitable for street and track use.
  • Includes fuel petcock and mounting hardware.

Pros: Slim design improves knee grip for supermoto riding.; Good for urban commuting and short track sessions.
Cons: Limited capacity and not ideal for off-road endurance.; Higher price relative to capacity compared to other tanks.

7. TM Designworks Factory Oversized Tank: Racing Grade

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The TM Designworks Factory Oversized Tank is a niche product aimed at serious racers and endurance competitors. With a 3.2-gallon capacity, it offers the largest fuel reserve we researched. The cross-linked polyethylene construction and quick-release cap meet racing standards. Owner feedback from professional riders is positive regarding range, but many note that installation can be challenging on bikes not originally designed for this tank.

The main drawbacks are the high cost and limited compatibility. This tank is overkill for most recreational riders and may require modifications to fit. Additionally, the bulk adds significant weight high on the bike, affecting handling. If you are a competitive enduro racer who needs every drop of fuel, this tank is a viable option. For everyone else, we recommend a more accessible and cost-effective tank.

  • Maximum capacity for extreme endurance races.
  • Race-proven design used by professional teams.
  • Includes quick-release fuel cap and vent system.

Pros: Highest capacity available for maximum range.; Professional-grade components like quick-release cap.
Cons: Very expensive; not for casual riders.; Fitment issues reported on some non-TM bikes.

Frequently Asked Questions

What material is best for a dirt bike gas tank?

Cross-linked polyethylene is generally considered the best material due to its high impact resistance, UV stability, and low fuel permeation. Standard polyethylene is more affordable but less durable. Steel tanks are heavier and prone to rust, while aluminum is lightweight but can dent. For most riders, cross-linked polyethylene offers the best balance of weight, durability, and safety.

How do I know if an oversized tank will fit my dirt bike?

Check the manufacturer’s fitment guide for your specific bike model, year, and engine size. Most reputable brands provide a list of compatible bikes. Also, consider that some tanks may require minor modifications like relocating the ignition coil or trimming plastic. Owner forums and reviews can offer real-world fitment insights.

Will a larger gas tank affect my bike's handling?

Yes, a larger tank adds weight higher up, which can raise the center of gravity and make the bike feel less nimble. However, many modern oversized tanks are designed to keep the weight low and maintain a slim profile. The trade-off in handling is usually minor compared to the benefit of extended range. For racing, a standard capacity tank may be preferred.

Can I install a new gas tank myself?

Yes, most aftermarket tanks are designed for DIY installation with basic tools. The process typically involves removing the seat and stock tank, transferring the petcock and fuel lines, and bolting on the new tank. Always follow the included instructions and ensure the tank is properly secured. If you are not comfortable, a professional mechanic can do it quickly.

What safety standards should a dirt bike gas tank meet?

Look for tanks that comply with industry standards such as DOT (Department of Transportation) or TUV for fuel containment and permeation. Cross-linked polyethylene tanks often meet these standards. Also, ensure the tank has a secure mounting system and a proper vent to prevent pressure buildup. Avoid tanks with visible defects or poor reviews regarding leaks.

Our Verdict

After researching and comparing specifications, industry standards, and owner feedback, we recommend the IMS Racing Oversized Fuel Tank as the best overall for its balance of capacity, durability, and ease of installation. For riders seeking the best value, the Clarke Manufacturing Oversized Fuel Tank offers a significant range boost at a lower cost. Choose based on your primary riding needs and budget.