How Fast is a 250cc Dirt Bike? [Top Speed Performance]

As you grip the handlebars and lean into each turn, you feel the raw power of your bike. You want your bike to carve new paths in rugged terrain with lightning speed. Choosing the right dirt bike makes a big difference. If you chose a 250cc dirt bike, that is a great choice. But the burning question on every rider’s mind is, how fast is a 250cc dirt bike?

A 250cc dirt bike can reach speeds of 70-78 mph (113-126 km/h). This depends on several factors including the model of the 250cc dirt bike. Some brand models can reach speeds of about 90 mph (145 km/h). 

In this article, you will learn about the top 250cc dirt bikes. You will explore their speeds and factors that can affect these speeds.

How Fast Can a 250cc Dirt Bike Go?

Isolated image of Enduro KTM 250 XC-W in blue green background - How fast is a 250cc dirt bike

The 250cc dirt bike top speed depends on the brand model of the bike. So, it varies. But most 250cc dirt bikes have speeds hovering around the 70-78 mph (113-126 km/h) range. A few others can go as fast as 80-90 mph (129-145 km/h). 

But some motorcycle brand manufacturers prioritize speed more than other performance indices. Thus, they ramp up the speed to make the fastest dirt bike in the world. They do this through deliberate body design and quality components.

Factors Affecting the Speed of a 250cc Dirt Bike

How fast is 250cc dirt bike? As mentioned earlier, several factors can affect the speed of a 250cc dirt bike. These factors include:

Engine power and torque

Engine power and torque are crucial factors that affect the speed of a 250cc dirt bike. Generally, a more powerful bike will generate more speed. This is so because a higher-powered engine can provide more energy. This energy is needed to help the bike accelerate faster and maintain the achieved speed.

On a similar note, the torque of a bike can determine its speed. A high-torque engine gives better low-end power. This makes it even faster for a 250cc dirt bike to reach top speed. 

Bike engines are of two types:

  • 2-stroke
  • 4-stroke

A 2-stroke engine generates more power and torque than a 4-stroke engine. This is because the 2-stroke engine requires only 2 steps to complete its cycle.

The 2-strokes are not just there anymore. The only thing that’s cool is the sound. I almost got smoked…riding a 250 two-stroke.”

James Stewart – The Fastest Man on the planet

Weight of the bike and rider

A heavier bike and rider will result in slower acceleration and a lower top speed. If a bike is too heavy, it can affect its speed. The rider may not be capable of taking control of the bike. This can impact stability and speed.

Also, the weight of the rider affects the bike’s speed as well. This affects the speed and performance of the bike due to strain on the engine and suspension. It is important to maximize the performance of the 250cc dirt bike.

This can be done by finding a balance between the weight of the bike and the rider. This includes adjusting the suspension to accommodate the rider’s weight. The rider’s weight can also be thrown forward when going uphill and backward when going downhill.

Type of terrain and track

Man on motocross riding his dirt bike

The speed of a 250cc dirt bike can be greatly affected by the type of terrain and track on which it is being ridden. The power and agility of a dirt bike can allow riders to navigate various types of terrain. This includes gliding from smooth tracks to rocky, uneven trails. But the speed at which a bike can travel can vary greatly depending on the conditions of the track.

On smooth, flat tracks, a 250cc dirt bike can reach its maximum speed potential. The lack of obstacles and smooth surface allows for maximum acceleration and top speeds. This makes it ideal for speed racing events. But this type of terrain doesn’t offer much of a challenge. It can become boring for experienced riders.

Rough and uneven terrain can significantly reduce the speed of a 250cc dirt bike. The uneven surface can cause the bike to lose traction and stability. This makes it difficult to maintain high speeds. Riders need to adjust their speed according to the terrain. They also need to be prepared to navigate sharp turns and sudden drops.

The Average Speed Range of 250cc Dirt Bikes

The average speed range of a 250cc dirt bike can vary depending on several factors. These factors include:

  • The terrain type 
  • The rider’s skill level
  • The specific make and model of the bike can also determine the average speed of a 250cc dirt bike. 

In general, most 250cc dirt bikes have an average top speed range of around 55-75 mph (88-120 km/h). The Apollo dirt bike 250cc top speed is 60 mph for example while the Kawasaki KX 250 has speed of 64 mph.

The rider’s skill level also plays a significant role in the bike’s average speed range. Experienced riders with good technique and control will ride faster with more confidence. Novice riders may struggle to keep up the same pace.

The specific make and model of the dirt bike can also impact its average speed range. Different manufacturers have varying top speeds, acceleration rates, and handling characteristics. So it’s important to choose a bike that fits your specific needs and riding style.

Comparison with other Motorcycle Classes

When it comes to dirt bikes, the 250cc class is just one of several different classes available. Each class has its unique characteristics. They are also built for a specific type of riding. So it’s important to choose the bike class that meets your needs. 

Here’s a comparison of the 250cc dirt bike class with some other motorcycle classes:

125cc Dirt Bikes

These bikes are smaller and less powerful than 250cc dirt bikes. It makes them a good choice for beginners or younger riders. How fast is a 125cc dirt bike? They have a top speed range of around 60-75 mph (97-121 km/h). This makes them slower than their larger counterparts.

450cc Dirt Bikes 

These bikes are larger and more powerful than 250cc dirt bikes. More experienced riders or those who need more speed can ride these bikes. It is best suited for racing or aggressive riding needs.

Top 250cc Dirt Bike Contenders

Amongst the 250cc dirt bikes in the world, there are a few that standout from the crowd with unique features. Take a glimpse at a selection of the leading contenders.

Overview of some 2023 Models of Enduro, Motocross, Cross-country, and Full Size MX Bikes

Isolated image of Enduro KTM 250 XC-W in light pink pastel color - How fast is a 250cc dirt bike

You can say the dirt bike market is saturated with many 250cc dirt bikes. As has been emphasized earlier, these bikes vary in performance and features. 

Here are some popular 250cc dirt bikes. They have different purposes like enduro and motocross racing. Some of them are also used in cross-country races.

Enduro KTM 250 XC-W

The Enduro KTM 250 XC-W is a true trailblazer with its nimble handling. It has a powerful engine with a sturdy suspension system. This bike is built for off-road adventures. It is not a street-legal bike. 

Thus, it allows riders to tackle rough terrain with ease and at a top speed of around 80 mph (129km/h). The KTM 250 XC-W is an excellent choice for those seeking a versatile bike. That is a bike that can handle anything from technical track to wide-open dirt roads.

Motocross (MX) Honda CRF250R

The Motocross Honda CRF250R is a high-performance machine purpose-built for speed and agility. With its lightweight frame and responsive handling, this bike is a true force on the track. 

The CRF250R is designed to push riders to the limit. Like the KTM Enduro, its top speed hovers around 60-70mph (97-113 km/h). This enables riders to achieve top speeds. They can also tackle the most challenging jumps and obstacles.

Motocross (MX) Suzuki RM-Z250

Isolated image of Suzuki RM-Z250 in brown background - How fast is a 250cc dirt bike

The Motocross Suzuki RM-Z250 is a sleek and stylish bike that is as fast as it is fun to ride. Its powerful engine and advanced suspension system allow riders to glide over jumps. They can take on corners with ease. 

The RM-Z250 is a true motocross machine. It’s built to provide riders with the agility and speed they need to dominate the track. This top speed is about 54 mph (87 km/h)

Cross-Country Yamaha YZ250X

The Cross-Country Yamaha YZ250X is rugged. It’s a durable bike built to handle the toughest terrain. Its suspension system and powerful engine can tackle steep hills and rough terrain. The Yamaha 250cc dirt bike top speed is 80 mph (129km/h)

Motocross (MX) Gasgas MC 250F

The Motocross Gasgas MC 250F is a high-performance bike. This is, in part, thanks to its compact profile. The lightweight aluminum profile helps this motocross bike reach this speed.

Motocross Husqvarna FC 250

The Motocross Husqvarna FC 250 is sleek and stylish. But there is more to it than a pretty body. The target functionality is speed and precision. Thus, it is no surprise this machine can hit a speed of 75 mph (121 km/h). A characteristic feature is its quality suspension system that tackles obstacles with ease.

Full-Size MX Kawasaki KX 250

The Full Size MX Kawasaki KX 250 is a true powerhouse. It combines speed, agility, and precision in one high-performance package. This makes it suitable for professional-level racing performance.

Top Dirt Bike Contenders in the 250cc Class

Suzuki RM-Z250Honda CRF250LKTM 250 EXC-FKawasaki KX 250
Engine and Displacement249cc, 4-stroke250cc, 4-stroke249.9cc, 4-stroke249cc, 4-stroke
Power and Torque output36.7HP, 18.3 lb-ft @ 9100 rpmN/A50 HPN/A
Weight 2336 lbs (1067kg)320lbs (145 kg)227 lbs (103kg)227.6 lbs (103.2 kg)
Dimensions (Length, width, and height)86.02 in.x32.9 in. x49.4 in.N/AN/A86.2in x 32.3 in x 50.0 in 
Top speed and acceleration54 mph (87 km/h)80 mph (129 km/h)90 mph (145 km/h)64 mph (103 km/h)

Analysis of the Comparison Table

The table of the top 5 250cc dirt bikes reveals some insights into their performance. These bikes are:

  • The Suzuki RM-Z250 
  • Honda CRF250L
  •  KTM 250 EXC-F
  • Kawasaki KX 250

1. Engine type and displacement

All the bikes have 250cc engines. The KTM 250 EXC-F has the largest engine displacement at 249.9cc. This may give it an advantage in terms of power output.

2. Power and torque output

Speaking of power, the KTM 250 EXC-F produces the highest horsepower at 50 HP. This is followed by the Suzuki RM-Z250 at 36.7 HP. The Suzuki RM-Z250 has the highest torque output at 18.3 lbs-ft.

3. Weight and dimensions

In terms of weight, the KTM 250 EXC-F and Kawasaki KX 250 are the lightest bikes in the group. They weigh in at 227 lbs and 227.6 lbs, respectively.

4. Top speed and acceleration

When it comes to acceleration, the Kawasaki 250cc dirt bike top speed is the lowest at 64 mph. This is followed by the  Suzuki RM-Z250 at 72 mph. 

The KTM 250 EXC-F has a top speed of 90 mph. While the Honda 250cc dirt bike top speed has the fastest speed. Their speeds are 80 mph.

This info on the dirt bikes suggests that the KTM 250 EXC-F have an advantage. This advantage is in power and speed. It can be attributed to the power and torque they generate.

Pros and Cons

Suzuki RM-Z250Lightweight and nimble
Swift throttle response
Not street-legal
Low speed compared to competitors
Honda CRF250LFuel injection technology
Dual sport purpose
Fitted with digital gauges
Less ground clearance
Too heavy
KTM 250 EXC-FCompact, enduro profile
High-quality components
High performance bike
High-cost price
Maintenance can be expensive
Kawasaki KX250Lightweight chassis
Excellent off-road performance
Comparative low speed
Expensive to maintain

Final Thoughts

Isolated image of Suzuki RM-Z250 in light blue background - How fast is a 250cc dirt bike

A 250cc dirt bike is a versatile and capable machine. It can provide a thrilling off-road experience. Its average speed range may not be as high as some other motorcycle classes. 

But it offers a good balance of power, maneuverability, and affordability. This makes it a popular choice for both beginners and experienced riders. 

Whether you’re looking to explore new trails or push your limits on the track. A 250cc dirt bike can be a great choice for off-road adventure.


How fast is a 250cc 2 stroke?

The speed of a 250cc 2-stroke is typically in the range of 75-88 mph (121-142 km/h).

How fast is a 250cc 4 stroke

The speed of a 250cc 2-stroke is typically in the range of 70-78 mph (113-126 km/h).

How fast does a stock 250 dirt bike go?

A stock 250 dirt bike can reach speeds of 60-80 mph (97-129 km/h)

Is 450cc faster than 250cc?

Yes, a 450cc dirt bike is faster than a 250cc bike. This is because 450cc dirt bikes have larger engine sizes and higher power output. Hence, they tend to be faster. But, how fast is a 450cc dirt bike?

Is a 250cc dirt bike good for beginners?

A 250cc dirt bike can be a good option for beginners. It is especially good for riders who have prior experience with motorcycles. Some 250cc dirt bikes, like motocross bikes, are not recommended for beginners though.

But if you are riding a bike for the first time, you may want to start with a smaller bike. This will help you with controlling the bike better and master your riding technique.