How To Size A Dirt Bike (Complete Guide)

How To Size A Dirt Bike For The Best Ride

There's nothing quite like the rush of riding a dirt bike. If you're new to the sport, though, sizing a dirt bike can be a little confusing. How do you know what size is right for you?

In this article, we'll walk you through the process of finding the right dirt bike size for your body and your riding style. We'll also give you some tips on how to adjust the bike to make it fit just right. So read on to learn more about how to size a dirt bike and get ready for some serious fun!

Choosing the right size bike is indeed crucial for a great and safe ride. It is not as difficult as it might seem. You just have to keep in mind the age and height of your kid, and you'll be good to go.

For kids aged between five to seven years old, 50cc dirt bikes would be a great choice. If your kid is over eight years old and has a height between four and five feet, then go for an 80-90cc bike. As for bigger kids with a height of over five feet, they would need a 125cc or 250cc bike.

How To Size A Dirt Bike

Among many types of dirt bikes, the two most common are motocross bikes and trail bikes. Motocross bikes are designed for racing on a track, while trail bikes are meant for off-road riding on trails or in the woods.

Adjusting the seat height is one of the most important things you can do to make your dirt bike fit you properly. The seat height should be such that when you are sitting on the bike, your feet are able to touch the ground flat-footed.

If the seat is too high, it will be difficult to control the bike. If it's too low, you won't be able to get the full range of motion out of your legs, and you'll likely end up hitting your shins on the gas tank.

Anyways, here's a guide on how you can adjust the seat height of your dirt bike:

Find The Adjustment Knob

To adjust the seat height, first find the adjustment knob or lever. This is usually located under the seat near the back of the bike. Once you've found it, turn it clockwise to raise the seat, or counterclockwise to lower it.

Test The Seat Height

Once you've made your adjustment, hop on the bike and see how it feels. If the seat is too high, you'll feel like you're perched on top of the bike and it will be difficult to control. If it's too low, you won't be able to get the full range of motion out of your legs.

The best way to test the seat height is to put your foot on the pedal and see if you can comfortably reach the ground. If you can, the seat height is probably just right. If not, make another adjustment and try again.

Keep Adjusting Until It Feels Right

It may take a few tries to get the seat height just right, but it's important to take your time and get it right. Once you find the perfect seat height, you'll be able to ride with confidence and control. And that's what it's all about!

How To Choose An Appropriate Size Dirt Bike For My Kid?

Well, that depends on the age and height of your kid. For kids aged between five to seven years old, 50cc dirt bikes would be a great choice. If your kid is over eight years old and has a height between four and five feet, then go for an 80-90cc bike.

As for bigger kids with a height of over five feet, they would need a 125cc or 250cc bike. Now you should consider the engine power too, because a powerful engine can be hard to control for a beginner, so choose accordingly.

You should always choose the right bike according to the height & experience level of your kid. To help you with that, here's a dirt bike size chart according to height & cc-

Height (in.) / Engine Size (cc)

Up to 36″ / 50-70cc

34-40″ / 65-85cc

39-46″ / 85-125cc

45 and up / 125cc and up

As you can see, choosing the right size dirt bike for your kid is not that difficult if you know what to look for. Just keep in mind the age, height, and experience level of your kid, and you'll be good to go.

How Tall Is A 250cc Bike?

Some people think that a 250cc bike is too tall for them, but the truth is that it depends on your height and experience level. If you're a beginner rider, then a 250cc bike might be too tall for you. However, if you're an experienced rider or are taller than average, then a 250cc bike should be just right.

If your height is 5'10” or more, you can easily ride a 250cc bike. However, if you're shorter than that, you might want to consider a smaller bike.

In general, a 250cc bike is about 36 inches tall, but it can vary depending on the make and model. So, if you're unsure about whether or not a 250cc bike is too tall for you, just ask your local dealer or check the bike's specifications online.

Is 125cc A Full-Size Dirt Bike?

A 125cc dirt bike is not considered a full-size dirt bike, but it's still a great option for riders of all sizes. If you're a beginner rider or are shorter than average, then a 125cc bike might be the perfect size for you.

However, if you're an experienced rider or are taller than average, then you might want to consider a larger bike. In general, a 125cc bike is about 32 inches tall, but it can vary depending on the make and model.

In terms of height, you should be at least 5 feet 4 inches tall to ride a 125cc bike. However, if you're taller than that, you might want to consider a larger bike.

So, whether or not a 125cc bike is right for you depends on your height and experience level. If you think you're experienced enough to handle a larger bike, then go for it. Otherwise, stick with a 125cc bike and you'll be just fine.

Final Thoughts

Now that you know how to size a dirt bike, it's time to hit the trails and have some fun! Just remember to always ride safely and within your skill level. Remember, there's nothing wrong with starting small and working your way up.

Dirt biking is a great way to get outdoors and have some fun, so make sure you size your bike correctly and most importantly, have fun! Thanks for reading. See you out on the trails, Ride safe!