A dirt bike is a type of motorcycle that is designed for off-road use. These bikes typically have smaller but tougher tires and are powered by engines that produce more power than standard motorcycles. Dirt bikes can be ridden on gravel roads, tracks, and even through wetlands and mud puddles. Here is the dirt bike size chart:

AgeBody Height (Inches)Dirt Bike Seat Height (Inches)
5-8 year-olds3’1123-25
8-9 year-olds4’424-26″
9-10 year-olds4’724-26″
10-12 year-olds4’926-31″
12+ years5’2″31-35″
12+ years5’4″33-36″
12+ years5’634-37″
12+ years5’834-38″
12+ years5’1035-39″
12+ years6″37.5″+
Dirt Bike Size Chart

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Dirt Bike Size Chart

The Different Types of Dirt Bikes

Dirt bikes come in all sorts of different sizes and styles. The type of bike you choose should be based on your skill level, terrain, and riding style. Here is a breakdown of the different types of dirt bikes:

Mini bikes: These bikes are the smallest and most lightweight option. They’re typically used by kids or beginners learning the ropes.

Pit bikes: These bikes are slightly bigger than mini bikes but are still lightweight and easy to maneuver. They’re typically used for racing or stunt riding.

Motocross bikes: These are the largest and most powerful type of dirt bike. They’re designed for racing on rough terrain.

How to Choose the Right Size Dirt Bike

One of the most important things to consider when purchasing a dirt bike is the size. You want to make sure you get a bike that’s the right size for you, or you could end up with an uncomfortable ride. This guide will help you choose the right size bike for you, based on your height and weight.

Consider the rider’s age, height, and weight

Purchasing the right sized dirt bike is essential for both the beginner and experienced riders. While some experienced riders may be able to handle a bike that is too powerful or too large, it is generally not recommended. For the beginner, it is even more important to purchase a dirt bike that is the proper size, as it will help in avoiding injuries and will make learning how to ride much easier.

When choosing a dirt bike, the three main factors that should be considered are the rider’s age, height, and weight. Once these three factors have been taken into consideration, then you can begin to look at other features such as the type of riding you will be doing, the terrain you will be riding on, and your budget.

Rider’s Age:

It is important to consider the rider’s age when purchasing a dirt bike because each age group has different sized bikes available to them.

For example, a young child between the ages of 4-7 years old would need a smaller 50cc bike while an older child between 8-11 years old could ride a larger 70-90cc bike.

Rider’s Height:

In addition to age, another important factor to consider is the rider’s height. You will want to make sure that the rider can touch the ground with both feet while seated on the bike.

If they can not reach the ground, then they will have a difficult time controlling the bike and could easily become injured. To find out what size bike your child needs based on their height, you can use this Dirt Bike Size Chart.

Rider’s Weight:

The weight of the rider is also an important factor when choosing a dirt bike as some bikes have weight limits.

For example, many 50cc bikes have a maximum weight limit of 85 pounds while some larger 125cc bikes can accommodate riders up to 200 pounds or more. It is important to check with the manufacturer before purchasing a dirtbike to make sure that it can accommodate the weight of the rider.

Type of Riding:

Not all dirt bikes are created equal and there are different types available depending on what type of riding you will be doing. For example, if you are planning on racing your dirt bike then you will need a different type than if you were just going to use it for recreational riding or trail riding.


The type of terrain you plan on riding your dirtbike on should also be considered when making your purchase. If you are going 2014 KTM 250 SX-F only going to be riding in wide open spaces with hard packed soil then you won’t need as much power or suspension, as someone who plans on doing motocross races or riding in off-road conditions with soft mud or sand.

Consider the type of riding you’ll be doing

The first thing you need to think about is what type of riding you’ll be doing. If you’re only going to be riding on trials or motocross tracks, then you can get away with a bike that’s smaller and lighter.

However, if you want to do some serious off-roading, then you’ll need something that’s big enough to handle the rougher terrain.


Now that you know the basics of dirt bike sizing, you’re ready to start shopping for your new bike! Be sure to check out our buyer’s guides for even more information on choosing the perfect dirt bike for your skill level and riding style.

When shopping for a dirt bike, it is important to consider what size bike will be best for you. Dirt bikes come in a variety of sizes, from small bikes that are designed for kids or beginners, to larger bikes that are better suited for experienced riders.

The size of the bike you need will depend on your height, weight, and skill level. If you are a beginner, or if you are buying a bike for a child, you will want to look for a smaller bike. While larger bikes may have more power and be more fun to ride, they can also be more difficult to control, so it is important to choose a size that is appropriate for your skill level.

To help you choose the right size bike, we’ve put together this Dirt Bike Size Chart. This chart lists the most popular dirt bike brands and models, along with their recommended height range. To find the right size bike for you, simply find your height in the left-hand column and then look across to find the corresponding bike size.

height (in) bike size
4’10” – 5’2″ 50cc – 70cc
5’2″ – 5’6″ 70cc – 100cc
5’6″ – 5’10” 100cc – 125cc
5’10” – 6’2″ 125cc – 250cc
6’2″ + 250cc +