Motor Hives

Honda 400EX Top Speed and Performance

Honda 400EX

When it comes to off-road adventures and exhilarating rides, the Honda 400EX stands as a true champion. In this comprehensive guide, we’ll dive deep into the world of this legendary all-terrain vehicle, focusing on its impressive top speed, performance capabilities, and why it continues to be a favorite among riders seeking adrenaline-fueled experiences.

The Thrill of Speed: Honda 400EX Top Speed

Breaking Down the Numbers

The Honda 400EX is renowned for its impressive top speed. With a stock configuration, this quad can easily reach speeds of up to 70 miles per hour (112) kilometers per hour). This level of velocity makes it one of the fastest sport ATVs available on the market. However, speed can vary depending on factors such as rider weight, terrain, and maintenance.

Modifications and Upgrades

For riders who crave even more speed, the 400EX offers a platform for customization and upgrades. Aftermarket parts and modifications can enhance engine performance, resulting in higher top speeds. It’s not uncommon for enthusiasts to push their 400EX to reach speeds beyond the stock limit.

A Honda 400EX ATV accelerates to its exhilarating top speed, kicking up dust on the off-road trail.
onda 400EX Reaching Top Speed on the Open Trail

Powering the Speed: Engine and Performance

Engine Specifications

The heart of the Honda 400EX’s exceptional performance lies in its robust engine. It’s equipped with a 397cc, air-cooled, single-cylinder, four-stroke engine that delivers reliable and consistent power. The engine’s design prioritizes torque, allowing the 400EX to excel in a wide range of riding conditions.

Responsive Suspension

To complement its engine prowess, the 400EX features a responsive suspension system. With independent front suspension and a swingarm rear suspension, this quad can handle both rough off-road trails and smoother, faster tracks with ease. The suspension setup ensures a comfortable ride even at high speeds, providing stability and control.

Manual Transmission

The 400EX comes equipped with a manual transmission featuring five speeds and a reverse gear. This manual setup allows riders to have precise control over their acceleration and speed, making it a preferred choice for those who enjoy the thrill of shifting gears.

A close-up view of the high-performance engine of the Honda 400EX, showcasing its power and speed
Discover the Thrilling Engine and Performance of the Honda 400EX.”

Safety and Handling

Safety Features

Safety is paramount when pushing the limits of speed and performance. The Honda 400EX incorporates safety features such as front and rear hydraulic disc brakes for efficient stopping power. Additionally, its lighting system ensures visibility even during nighttime rides.

Rider Experience

While speed is exhilarating, the 400EX is designed with rider comfort and handling in mind. Its ergonomic seating position and responsive controls provide riders with a sense of confidence and control, even when navigating challenging terrain at high speeds.

Maintenance and Care

Routine Maintenance

To maintain peak performance and top speed, regular maintenance is essential. Routine tasks include oil changes, air filter cleaning or replacement, and spark plug checks. Ensuring that the quad’s engine and components are in optimal condition is key to reaching and sustaining its top speed.

Tire Maintenance

Proper tire maintenance is crucial for safety and performance. Check tire pressure, inspect for wear, and choose tires suited to your riding style and terrain. Well-maintained tires contribute to stable handling and control, even at high speeds.

Engine397cc, Air-Cooled, Four-Stroke
TransmissionManual, 5-Speed with Reverse
Fuel SystemCarburetor
Front SuspensionIndependent Double Wishbone
Rear SuspensionPro-Link® Single Shock
Front BrakesDual Hydraulic Disc
Rear BrakesHydraulic Disc
Tires – Front22 x 7-10
Tires – Rear22 x 10-9
Length73.3 inches (1862 mm)
Width45.5 inches (1156 mm)
Height43.3 inches (1100 mm)
Seat Height31.4 inches (798 mm)
Ground Clearance4.3 inches (109 mm)
Wheelbase47.5 inches (1207 mm)
Curb Weight395 lbs (179 kg)
Fuel Capacity2.6 gallons (9.8 liters)

A Honda 400EX ATV undergoing regular maintenance checks and care procedures
Routine Maintenance and Care for Your Honda 400EX


The Honda 400EX is a thrilling all-terrain vehicle that combines power, speed, and agility to deliver an unforgettable riding experience. With a top speed of around 70 miles per hour and a performance-oriented design, it’s no wonder this quad remains a favorite among off-road enthusiasts.

Whether you’re seeking the excitement of high-speed rides or the versatility to conquer various terrains, the 400EX delivers. Keep in mind that while it offers impressive stock performance, customization options allow riders to unlock even greater speeds and capabilities.

As you embark on your 400EX adventures, remember to prioritize safety, regular maintenance, and responsible riding practices. By doing so, you can fully enjoy the exhilaration of the Honda 400EX while ensuring a long and exciting journey on and off the trails.


What is the Honda 400EX?

The Honda 400EX, also known as the Honda Sportrax 400EX, is an all-terrain vehicle (ATV) designed for recreational off-road riding. It’s a popular choice among ATV enthusiasts for its performance and reliability.

What is the engine size and power output of the Honda 400EX?

The Honda 400EX is equipped with a 397cc, air-cooled, four-stroke engine. It delivers a powerful and responsive performance, making it suitable for various off-road activities.

What type of transmission does the Honda 400EX have?

The Honda 400EX features a manual transmission with five forward gears and a reverse gear. This manual gearbox allows riders to have precise control over their ATV.

Ghulam Fareed

Ghulam Fareed

Ghulam Fareed is an automotive enthusiast with a keen eye for detail and a profound appreciation for all things on wheels. With a career spanning over 5 years in automotive journalism, He has earned a reputation as a trusted source of information and insight in the automotive industry.

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