What Size Dirt Bike Do You Need in 2024?

Published: 30.6.23

Updated: 19.8.24

Struggling to choose the right dirt bike size?

Our 2024 guide covers all the key factors—height, weight, and experience level—to help you find your perfect fit.

But what factors should you consider when determining what size dirt bike you need? 

We have a range of dirt bikes available here "OneMoto" to help you make the right choice.

Understanding Your Need

Evaluating Your Height and Weight

If you think about it, your height and weight have a massive impact on the kind of bike that'll fit you best.

For an average-sized adult, standing at 5'6" and above, full-size dirt bikes are the way to go.

These bikes are designed to fit your stature and handle well. However, if you're on the shorter side, a bike with a lower seat height might be a more comfortable option.

This is especially true for kids, where getting the right petrol ride-on motorbike can make a significant difference.

Besides, your weight also influences the bike size. The heavier you are, the larger the engine size you may need to efficiently handle the extra weight.

Choose the right petrol ride-on motorbike for a significant difference in comfort and safety.

Related: Should I Buy a Dirt Bike?

Defining Your Experience Level

Whether you're a beginner or an experienced rider, your experience level significantly influences the dirt bike size that's right for you.

Beginners are generally recommended to start with a smaller engine size.

It's like learning to jog before you sprint. This way, you can progressively work your way up to larger bikes as your skills develop.

Our guide on answering common questions from parents about junior dirtbikes and quads might be of help.

On the other hand, for seasoned riders, larger bikes could be the next thrilling adventure.

Identifying Your Purpose

Not all dirt bikes serve the same purpose. What kind of riding you plan on doing can also determine the size of your dirt bike.

If you're looking to ride on trails or through the woods, smaller bikes offer better manoeuvrability and are easier to handle.

This is even more pertinent if you're looking for places in the UK to if you're looking to ride on trails or through the woods, smaller bikes offer better manoeuvrability and are easier to handle.

If you're looking for places in the UK to ride dirt bikes, you can check out our guide on where you can ride dirt bikes in the UK.

Choosing the Right Bike for You

Testing the Bike Before Purchase

One additional point we could add is the importance of testing the bike before purchasing.

This not only includes sitting on the bike to check the seat height and see if you can touch the ground comfortably, but also giving it a test ride if possible.

This way, you can feel the bike's weight, test its balance, and assess its overall fit for your body.

Doing this can give you a better sense of whether the bike will be a good fit for your specific needs and comfort level.

This is particularly important for beginners, who may not yet know what feels best to them in a dirt bike.

Remember, the bike's specs on paper might not always translate to the most comfortable or appropriate ride for you.

Always try to get a hands-on experience before finalising your decision.

Related: Why Are Dirt Bikes So Expensive?

Breaking Down Bike Sizes

Seat Height: Why it Matters

The seat height of a dirt bike is essentially the distance from the ground to the seat's highest point.

It's a crucial element when determining what size bike you need.

Ideally, you should be able to touch the ground with both feet when sitting on the bike.

It's like being able to stand flat-footed in your running shoes; it's about balance and control.

Your height and the seat height need to correlate; if you're shorter, consider a bike with a lower seat height.

Related: How to Lower a Dirt Bike?

Engine Size: A Key to Performance

The engine size, measured in cubic centimeters (cc), is the heartbeat of a dirt bike.

It determines the power and performance, ranging from 50cc to a whopping 450cc or more.

The engine size you need will depend on your weight, age, experience, and the type of riding you plan on doing.

Heavier riders and experienced ones might need a larger engine size to keep the adrenaline pumping.

If you're interested what CC means, check out this article - What Does CC Mean in Motorcycles? Learn About CC in Bikes? for more info.

Dirt Bike Size Calculator: An Essential Tool

Consider the dirt bike size calculator as your personal advisor when choosing a bike.

This handy tool can guide you based on your height, weight, and experience level.

All you need to do is input your details, and it'll recommend the best bike size for you.

Remember, the calculator is only a guide; nothing replaces physically testing out a bike.

Height Dirt Bike Sizes for Adults and Kids

Note: These are approximate figures, and factors such as body size and experience level should also be considered when choosing a dirt bike.

Related: How Tall Do You Have to Be To Ride a Motorbike?

Good Beginner Choices

If you're just starting out, good beginner choices would be 125-150 cc 4-strokes or 100-125 cc 2-strokes.

These bikes offer a balanced combination of power and manageability for novice riders.

Remember, if you're taller, say 6 feet, you'll need a bike with a seat height of at least 32 inches to ensure comfort and control.

Related: The Comprehensive Guide to Kids Motorbikes

Best Dirt Bike for Tall Riders (Teenagers and Adults)

For tall riders, particularly teenagers and adults, finding a dirt bike that offers a comfortable fit and powerful performance is crucial.

Taller individuals, especially those around 6 feet or above, require bikes with higher seat heights and robust engines.

Here are some top recommendations for tall teenage and adult riders:

Recommended Dirt Bikes for Tall Riders

1. 350/450cc Motocross Bikes

   • Honda CRF450R
   • Kawasaki KX450
   • Yamaha YZ450F
   • OneMX PX5S 300CC Petrol Motorbike

   These models feature seat heights around 37-38 inches and powerful 450cc engines, making them ideal for taller teenagers and adults. They provide the necessary height and power for off-road adventures.

2. 450cc Trail/Enduro Bikes

   • Honda CRF450X
   • Yamaha WR450F
   • KTM 450 EXC

   With seat heights around 37-38 inches, these trail and enduro bikes are perfect for taller teenage and adult off-road riders. They offer excellent power and suspension capabilities for rugged terrains.

3. 650cc Dual-Sport Bikes

   • Kawasaki KLR650
   • Suzuki DR650

   These dual-sport bikes are well-suited for very tall riders (6'4" and above) with seat heights around 35 inches. They provide a great balance of comfort and power for both on-road and off-road riding.

Important Considerations for Tall Teenage and Adult Riders

When selecting a dirt bike, the most important factors for tall riders include being able to plant both feet securely on the ground and having enough power and suspension to handle their weight. Here are some tips:

• Adjustments: Taller teenage and adult riders may need to make modifications such as raising the handlebars, using a taller seat, or adjusting the suspension to improve comfort and handling.
• Test Rides: It's highly recommended to test ride different models, as bike dimensions can vary. This ensures you find a bike that fits well and meets your riding needs.

Preparation for Riding

Importance of Safety Gear

Alongside choosing the right size dirt bike, ensuring you have the correct safety gear is also vital for a safe and enjoyable riding experience.

This includes a well-fitting helmet, motocross boots, gloves, goggles, and body armour.

Each piece of gear plays a crucial role in protecting you in the event of a fall or accident.

Always invest in high-quality gear that fits you well and meets all safety standards.

Remember, riding is much more enjoyable when you feel safe and protected.

In Summary

All in all, determining the right size dirt bike involves considering your height, weight, experience level, and purpose.

It's about finding a bike that fits you well and matches your skill level and riding needs.

Be it engine size or seat height, every aspect matters when it comes to selecting a dirt bike.

So take your time, use the right tools, and make the choice that promises the most exhilarating ride!

FAQs

How do I maintain my dirt bike?

Maintaining your dirt bike is crucial for ensuring its longevity and optimal performance. This includes regular engine oil changes, cleaning or replacing the air filter, checking and adjusting the chain, inspecting the brake pads, and performing a thorough visual inspection before each ride. Always refer to the manufacturer's manual for specific maintenance recommendations for your bike model.

Can I use a dirt bike on the road?

In most cases, dirt bikes are not street legal as they lack the necessary equipment for road use, such as headlights, indicators, and mirrors. However, some models are dual-sport bikes, designed for both off-road and on-road use, and are equipped with the necessary features to make them street-legal. Always check local laws and regulations to ensure you're riding legally and safely.

Do I need a special licence to ride a dirt bike?

The requirements for riding a dirt bike vary greatly by region. Some places may require you to have a motorcycle licence, while others may have different age and licence requirements for off-road riding. Always check with local law enforcement or a relevant government agency to understand what's needed in your specific location.