How Fast Does a 125CC Dirt Bike Go? (Dirt Bike Brands Speed Compared)

Are you a thrill-seeker who loves the adrenaline rush of riding dirt bikes? If so, then you might be wondering just how fast can a 125cc dirt bike go. As one of the most popular sizes on the market, there are several brands and models to choose from. In this blog post, we’ll compare top-rated 125cc dirt bikes and their speed capabilities. Get ready for some serious engine revving action as we dive into this exciting topic!

How Fast Does a 125cc Dirt Bike Go?


How fast does a 125cc dirt bike go? They have a top speed of around 60-70 mph. However, this varies depending on the make and model of the bike. The weight of the rider also affects the speed.

Different Types of 125cc Dirt Bikes

There are a few different types of 125cc dirt bikes, each with their own unique set of features and benefits. Here’s a quick rundown of the most popular options:

  1. Motocross Bikes: Motocross bikes are designed for racing on motocross tracks. They have a lightweight frame and suspension system that is optimized for jumping and handling tight turns. They usually have high-revving engines that produce a lot of power and acceleration.
  2. Trail Bikes: Trail bikes are designed for off-road riding on trails and rough terrain. These bikes a more relaxed riding position and a softer suspension system than motocross bikes. They also have features like headlights, taillights, and turn signals, making them street-legal in some areas.
  3. Dual Sport Bikes: Dual sport bikes are designed for both on-road and off-road use. Their features include headlights, taillights, and turn signals, making them street-legal. They also have a suspension system that is suitable for off-road riding, but not as aggressive as a motocross bike.
  4. Enduro Bikes: Enduro bikes are designed for long-distance off-road riding and racing. They have a suspension system that is optimized for both off-road terrain and high-speed riding. They also have features like headlights, taillights, and turn signals, making them street-legal in some areas.
  5. Pit Bikes: Pit bikes are smaller versions of dirt bikes that are often used for racing and practicing on smaller tracks. They are usually less expensive than full-sized dirt bikes and are popular among younger riders.

Overall, the type of 125cc dirt bike you choose will depend on your riding style and preferences. It’s important to do your research and test ride different types of bikes to find the one that is best suited for you.

The Fastest 125cc Dirt Bike


When it comes to finding the fastest 125cc dirt bike, there are a few different brands that you can choose from. However, not all of these brands are created equal when it comes to speed. In order to help you make the best decision possible, we’ve gone ahead and compared the top dirt bike brands in terms of their top speed.

KTM: KTM is a Austrian company that’s well-known for their racing motorcycles. When it comes to the top speed of their 125cc dirt bikes, they come in at an impressive 65 miles per hour.

Honda: Honda is another one of the big names in the motorcycle industry. When it comes to the top speed of their 125cc dirt bikes, they’re slightly slower than KTM at 60 miles per hour.

Yamaha: Yamaha is a Japanese company that’s been around since 1955. They’re one of the most popular motorcycle manufacturers in the world. The top speed of their 125cc dirt bikes is 58 miles per hour.

Suzuki: Suzuki is another Japanese company that’s been around for over 100 years. They’re known for manufacturing a wide variety of vehicles, including motorcycles. Their top speed is 58 miles per hour.

How to Make Your 125cc Dirt Bike Go Faster

Many riders may feel that their 125cc bike lacks the speed and power necessary to keep up with their peers. Fortunately, there are several ways to increase the performance of your 125cc dirt bike and make it go faster.

  1. Upgrade the exhaust system: One of the easiest and most effective ways to increase the power of your 125cc dirt bike is to upgrade the exhaust system. A performance exhaust system can improve the airflow and allow the engine to breathe more easily, resulting in improved horsepower and acceleration.
  2. Install a high-performance air filter: Along with upgrading the exhaust system, installing a high-performance air filter can also increase the airflow to the engine, resulting in improved performance. A high-performance air filter can help to prevent dirt and debris from entering the engine while allowing more air to pass through, resulting in increased power and acceleration.
  3. Upgrade the carburetor: The carburetor is responsible for mixing fuel and air in the engine, and upgrading to a high-performance carburetor can result in increased horsepower and better throttle response. However, it’s important to ensure that the new carburetor is properly jetted to match the bike’s specific engine requirements.
  4. Change the sprockets: Another way to increase the speed of your 125cc dirt bike is to change the sprockets. A larger rear sprocket or a smaller front sprocket can result in higher top speeds and improved acceleration.
  5. Tune the engine: Regular maintenance and tuning of the engine can also improve the performance of your 125cc dirt bike. This includes adjusting the valves, replacing worn out spark plugs, and checking the fuel and air filters.
  6. Use high-performance fuel: Using high-performance fuel with a higher octane rating can also help to increase the power and speed of your 125cc dirt bike. High-performance fuel can provide more energy to the engine and allow it to perform at a higher level.



In conclusion, we can see that the speed of a 125cc dirt bike varies greatly depending on the brand and model you choose. Whether you’re looking for a leisurely ride through the countryside or an exhilarating race through your favorite off-road trail, there is sure to be a 125cc bike out there perfect for your needs. Keep in mind all factors such as terrain, engine size, and rider weight before selecting one so that you get exactly what you are looking for in terms of speed and performance.