The KX250F is a high-performance motocross bike manufactured by Kawasaki. It is designed for off-road racing and is known for its powerful engine and exceptional handling.
The KX 250F features a liquid-cooled, four-stroke, single-cylinder engine that produces impressive power and torque. Its fuel injection system ensures precise throttle response and efficient fuel consumption. The bike also features a lightweight aluminum perimeter frame that provides excellent rigidity and stability.
The suspension system on the KX 250F is fully adjustable, allowing riders to customize their ride to their specific needs and preferences. The front suspension is handled by a Showa SFF (Separate Function Fork) and the rear suspension is a Uni-Trak with a Showa shock. The bike also features powerful brakes, with a single 270mm petal disc up front and a single 240mm petal disc in the rear.

The KX 250F is known for its nimble handling and exceptional maneuverability. It features a narrow frame and low seat height, making it easy for riders to move around on the bike and tackle tight turns and jumps. The bike also features a wide footpeg platform and a comfortable seat, making it ideal for long rides or extended races.
Here are the specifications for the 2022 Kawasaki KX 250F:
Category | Specification |
Engine | 249cc liquid-cooled, four-stroke single-cylinder engine |
Bore x Stroke | 77.0 x 53.6mm |
Compression Ratio | 14.2:1 |
Fuel System | DFI® with 44mm Keihin throttle body |
Ignition | Digital CDI |
Transmission | Five-speed |
Final Drive | Chain |
Front Suspension | Showa SFF telescopic fork with 49mm inner tube diameter |
Rear Suspension | Uni-Trak® linkage system and Showa shock |
Front Brake | Single 270mm petal disc with dual-piston caliper |
Rear Brake | Single 240mm petal disc with single-piston caliper |
Front Tire | 80/100-21 |
Rear Tire | 100/90-19 |
Overall Length | 85.8 in. |
Overall Width | 32.3 in. |
Overall Height | 50.2 in. |
Ground Clearance | 13.4 in. |
Seat Height | 37.3 in. |
Curb Weight | 233.7 lb. |
Fuel Capacity | 1.69 gal. |
Overall, the KX 250F is a high-performance motocross bike that is designed for serious riders who demand the best in power, handling, and performance. With its advanced technology and exceptional build quality, it is a top choice for riders who want to dominate on the track.
What is the top speed of KX250F? How fast can a KX250 go?
The top speed of a Kawasaki KX250F can vary depending on various factors such as rider weight, terrain, weather conditions, and altitude. Generally, the KX250F is capable of reaching a top speed of around 80-85 miles per hour (130-140 kilometers per hour) on a flat surface with no obstacles or wind resistance. However, it’s important to note that the bike’s performance is optimized for off-road use, such as motocross racing, where speed isn’t the only important factor. The KX250F is designed to deliver impressive power and handling in a range of different conditions, making it a top choice for riders who demand the best in off-road performance.
Engine Performance:

The KX250F is powered by a liquid-cooled, four-stroke, single-cylinder engine that delivers impressive power and torque. Its fuel injection system ensures precise throttle response and efficient fuel consumption. The engine is also equipped with a lightweight piston and a short-stroke design, which helps to increase the bike’s overall power and responsiveness.
Safety Features:
The KX250F features a range of safety features designed to protect the rider and ensure a safe and enjoyable riding experience. These features include:
- Braking System: The bike is equipped with powerful brakes, including a single 270mm petal disc up front and a single 240mm petal disc in the rear. These brakes provide exceptional stopping power and help to ensure that the rider can quickly and safely slow down or come to a stop when necessary.
- Suspension System: The suspension system on the KX250F is fully adjustable, allowing riders to customize their ride to their specific needs and preferences. This helps to ensure that the bike is always operating at its optimal level of performance, regardless of the terrain or conditions.
- Ergonomics: The KX250F features a narrow frame and low seat height, making it easy for riders to move around on the bike and maintain control at all times. The bike also features a wide footpeg platform and a comfortable seat, which helps to reduce rider fatigue and increase overall safety.
- Traction Control: The KX250F is equipped with advanced traction control technology, which helps to ensure that the bike maintains optimal grip and control in a range of different conditions. This technology works to prevent the wheels from slipping or spinning out of control, which can help to prevent accidents and keep the rider safe.
Different Factors that can affect the KX250F Top Speed
Suspension Modifications:
Suspension modifications can affect the top speed of a KX250F because they can alter the bike’s handling characteristics. Stiffer suspension can help to increase stability and reduce bouncing, which can allow the rider to achieve a higher top speed. On the other hand, softer suspension can increase comfort and reduce fatigue, but may also reduce stability at high speeds.
Engine Modifications:
Engine modifications can have a significant impact on the top speed of a KX250F. For example, modifications such as increasing the engine displacement, changing the camshaft, or installing a high-performance exhaust system can all help to increase power and torque, which can lead to higher top speeds.
Tire Modifications:
Tire modifications can affect the top speed of a KX250F by altering the bike’s grip and handling characteristics. Changing to tires with a lower profile or a harder compound can help to reduce rolling resistance, which can allow the bike to achieve a higher top speed. However, changing to tires with less grip can also reduce traction and stability, which can make the bike more difficult to control at high speeds.
Gearing:

Gearing can have a significant impact on the top speed of a KX250F. Changing the gear ratios can help to increase or decrease the bike’s top speed, depending on whether the gearing is taller or shorter. Taller gearing can help to increase top speed, but may also reduce acceleration and low-end power.
Tire Pressure:

Tire pressure can affect the top speed of a KX250F by altering the bike’s handling characteristics. Lower tire pressures can increase grip and stability, which can help to increase top speed. However, lower tire pressures can also increase rolling resistance and reduce fuel efficiency, which can impact the bike’s overall performance.
Rider Conditions:
Rider conditions can also have an impact on the top speed of a KX250F. Factors such as the rider’s weight, riding position, and experience level can all affect the bike’s performance. For example, a heavier rider may experience slower acceleration and a lower top speed than a lighter rider, while an experienced rider may be able to achieve a higher top speed than a less experienced rider.
Riding Terrain:
The riding terrain can also affect the top speed of a KX250F. Off-road terrain such as dirt or sand can reduce traction and stability, which can make it more difficult for the rider to achieve a high top speed. On the other hand, smooth and flat surfaces such as pavement or concrete can provide better grip and stability, which can help the bike achieve a higher top speed.
In conclusion, there are several factors that can affect the top speed of a Kawasaki KX250F. Suspension modifications, engine modifications, tire modifications, gearing, tire pressure, rider conditions, and riding terrain can all play a role in determining how fast the bike can go. Riders can experiment with these factors to find the optimal combination for their riding needs and preferences. It’s important to remember that safety should always be a top priority when riding a KX250F, regardless of the bike’s top speed