Dirt Bike Tire Sizes: Find the Right Size for You.

Dirt Bike Tire Sizes

When it comes to dirt bike tire sizes, things can get a little tricky. You may think that your tire size is big enough for you, but this really won’t matter if the wheel diameter is too small for your riding style. Riders with a more aggressive style might want to choose smaller tires in order to provide more acceleration and grip.

Decoding the Numbers and Letters

Most dirt bike tires will have a sizing system that is composed of three numbers and one letter. The first number is the width of the tire in millimeters, the second number is the height of the sidewall in relation to the width, and the third number is usually an arbitrary size measurement. The letter at the end of the sizing system is the diameter of the wheel in inches.

So, a tire that is labeled as 120/90-18 would have a width of 120 millimeters, a sidewall height of 90% of the width (108 millimeters), and 18-inch diameter. Keep in mind that some tires may use different measurements, so it’s important to always double-check that you’re getting the right tire for your bike.

Dirt Bike Tire Categories

Sand Tires:

Off-road sand tires are designed to provide maximum traction in loose, sandy conditions. They usually have a paddle-style tread that helps to grip the surface of the sand.

Mud Tires:

Mud tires are similar to sand tires, but they’re designed to provide better traction in thicker mud. They have wider lugs (tread patterns) that help to dig into the mud and provide more grip.

Race Tires:

Race tires are designed for competition use on hard-packed surfaces. They have a smooth, slick tread that provides maximum traction and speed.

All-Terrain Tires:

All-terrain tires are a cross between sand and mud tires. They provide good traction in a variety of off-road conditions, but they’re not as specialized as the other types of tires.

Street Tires:

Street tires are designed for use on paved surfaces. They have a tread pattern that is optimized for grip and stability at high speeds.

Dirt Bike Tire Conversion Chart

If you’re not sure what size tire your bike needs, you can use this conversion chart to help you out.

MetricInches
120/90×195.10×19
110/90×194.50×19
100/90×194.10×19
140/80×185.60×18
130/80×185.30×18
120/100×185.10×18
110/100×184.50×18
Dirt Bike Tire Conversion Chart

The Right Size for You

Now that you know how to decode the numbers and letters on a dirt bike tire, it’s important to figure out what size is best for you. If you’re just starting out, it might be wise to stick with a smaller tire size so you can get accustomed to the handling characteristics of your bike.

As you progress and become more comfortable with riding, you can start to experiment with different tire sizes to see what works best for your style. A larger tire might provide more stability at high speeds, but it will also make the bike harder to turn.

It’s important to keep in mind that the diameter of the wheel is also a factor when choosing a tire size. If you have a 17-inch wheel on your dirt bike, you’ll want to stick with tires that have a letter designation of 17 or higher.

When in doubt, it’s always best to consult with your local dealer to see which tire size is best for you. They’ll be able to help you find the right tire for your bike and riding style.

So how Do You Know What Size Is Right for You?

The wheel diameter is the most important factor to consider when choosing a dirt bike tire size. The wheel diameter is measured in inches, and it refers to the size of the wheel itself, not the tire. This means that if you have a 21-inch wheel on your dirt bike, you will need a 21-inch tire to fit that wheel.

The other factor to consider is the width of the tire. Tires come in a variety of widths, and you will need to choose one that is appropriate for your riding style. If you’re just starting out, it might be a good idea to stick with a wider tire, as it will provide more stability and grip. As you gain experience, you may want to try narrower tires for a more agile feel.

Once you’ve determined the wheel diameter and width of your ideal tire, all you have to do is find a tire that is available in that size. Not all tires are available in every size, so be sure to do your research before making a purchase.

What Is the Difference Between a Tire’s Width and Height?

The width of a tire is the distance between the sidewalls, while the height is the distance from the tread to the rim. This means that a taller tire will be wider than a shorter one. As mentioned earlier, you will need to choose a width that is appropriate for your riding style. A narrower tire will provide more agility and grip, while a wider tire will provide more stability.

When it comes to dirt bike tires, the most important thing to consider is the wheel diameter. The wheel diameter is measured in inches, and it refers to the size of the wheel itself, not the tire. This means that if you have a 21-inch wheel on your dirt bike, you will need a 21-inch tire to fit that wheel.

The other factor to consider is the width of the tire. Tires come in a variety of widths, and you will need to choose one that is appropriate for your riding style. If you’re just starting out, it might be a good idea to stick with a wider tire, as it will provide more stability and grip. As you gain experience, you may want to try narrower tires for a more agile feel.

Once you’ve determined the wheel diameter and width of your ideal tire, all you have to do is find a tire that is available in that size. Not all tires are available in every size, so be sure to do your research before making a purchase.

Why Do Dirt Bike Riders Need to Know Their Wheel Diameter?

Knowing your wheel diameter is important because it will help you choose the right size tire for your bike. If you have a 21-inch wheel, you will need a 21-inch tire to fit that wheel. Tires are available in a variety of widths, and you will need to choose one that is appropriate for your riding style. A narrower tire will provide more agility and grip, while a wider tire will provide more stability.

Once you’ve determined the wheel diameter and width of your ideal tire, all you have to do is find a tire that is available in that size. Not all tires are available in every size, so be sure to do your research before making a purchase.

What Is the Difference Between a Dirt Bike’s Wheel Diameter and The Overall Height of The Bike?

The wheel diameter is different than the overall height of the dirt bike. The wheel diameter is measured in inches, and it refers to the size of the wheel itself, not the tire. This means that if you have a 21-inch wheel on your dirt bike, you will need a 21-inch tire to fit that wheel.

How Can You Find Your Wheel Diameter?

The wheel diameter can be found by measuring the distance between the sidewalls of the tire. This is typically measured in inches. You can also find this information on the sidewall of the tire. Once you have this information, you can use it to choose a tire that is appropriate for your bike and riding style.

Knowing your wheel diameter is important because it will help you choose the right size tire for your bike. If you have a 21-inch wheel, you will need a 21-inch tire to fit that wheel. Tires are available in a variety of widths, and you will need to choose one that is appropriate for your riding style. A narrower tire will provide more agility and grip, while a wider tire will provide more stability.

Once you’ve determined the wheel diameter and width of your ideal tire, all you have to do is find a tire that is available in that size. Not all tires are available in every size, so be sure to do your research before making a purchase.

Conclusion

Dirt bike tire sizes can be a little tricky to understand at first, but with a little bit of research, you should be able to find the right size for you. The most important thing to consider is the wheel diameter, which refers to the size of the wheel itself, not the tire. Tires are available in a variety of widths, so you will need to choose one that is appropriate for your riding style. A narrower tire will provide more agility and grip, while a wider tire will provide more stability. Once you’ve determined the wheel diameter and width of your ideal tire, all you have to do is find a tire that is available in that size. Not all tires are available in every size, so be sure to do your research before making a purchase.

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Adam Mors

Adam Mors

My son tried to ride many kinds of 2 wheels motorcycles.
It’s important to choose the right motorcycle for your young rider, so please read my best dirt bikes for kids reviews. Have FUN!

About Me

My son tried to ride many kinds of 2 wheels motorcycles, from dirt bikes and cruisers to ATVs. It’s important for you as a parent or guardian figure out the best motorcycle type that will be right for your young rider, so please read my reviews on some great choices!

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