Have you ever wondered which are the fastest dirt bikes in the World? And what makes these dirt bikes be best in their category?

Dirt bikes are naturally made to produce extreme power and reach intense speeds in miles per hour for the element of fun and racing off the road. The skids, speed, throttle, and jumps are the thrill of a dirt bike. The speed of dirt bikes however isn’t the only thing to put into consideration; there are also other equally if not stronger important attributes such as powerful gears, responsive handling, excellent suspension, and a strong clutch.

You should be able to push your engine to reach optimum speeds, and still, have enough fun and comfort on your way. Sure, it is fun when you can rip around a tight corner on a dirt trail, but for a fun-filled off-road experience, the bike’s handling, soft suspension, and gearing are just as important. Despite all these, there are the top ten bikes that are undisputed when it comes to their speed and quality. In this article, expect to read about dual-sport, motocross and even electric dirt bikes that are the fastest in the world in their category.

However,

Keep in mind that some of these speeds are under optimal riding conditions but harsh operating environment for the engine due to high RPM’s. Some of the bikes have been modified as well. As you would know, real life numbers tell entirely different story.

Yes, I’m talking about the KTM 450 SX-F that every media outlet says that it’s top speed is 123MPH. It is not!! We have tested it and others have tested it. Prove me wrong in the comments. But check below to see what its maximum speed and top speed in real life usage.

If you want to test the speed of your dirt bike, here are some dirt bike speedometers that you can look into.

Check out the speed comparison graph below of the fastest dirt bikes ever manufactured.

If you want to read in detail on each dirt bike and its speed, please continue reading below:

1. Suzuki DR-Z 400SM

This is a monster bike by all standards and can hold up to its number one position because of its speed after adjustment and modification.

Over the years this bike has not seen much adjustment but when something is built being superb what do you expect? This machine has a 398cc DOHC single-cylinder engine and produces 39 horsepower and 25 pounds-ft of peak torque, and all of these make this bike one of the fastest dirt bike in the world. It has a dry weight of 302 pounds. With such top speed and its heavyweight, it’s a bike to be awed.

How fast is a DRZ 400SM?

The Suzuki DR-Z is made with a maximum speed of around 94 mph and an acceleration of up to 0-60mph in 4.54 seconds. Modified can also reach 114mph at top speeds. It could be called an adventure bike as it is a capable off-road machine, but riders report it’s not comfortable after 90mph.

Top Speed: 114mph (400cc)

2. Aprilia RXV 5.5 (2013 Model)

Aprilia RXV 5.5 is undoubtedly a race-ready dirt bike that rides light with 303 pounds. It has been developed with a series of significant upgrades and technologies inspired by the Enduro World Championship experience.

How fast is Aprilia RXV 5.5?

The Aprilia RXV 5.5 can deliver an alarming acceleration and top speed of 113mph. Aprilia will definitely give desired results with its amazing balance and undeniable speed when it comes to dirt bike riding both off-road and on-road. However, riders from Aprilia forums report a comfortable maximum speed is around 100mph.

It is fitted with a V-twin 45.2 engine that has more subtle vibrations than any single-cylinder unit. Its engine delivers a massive 549cc displacement.

Top Speed: 113mph (549cc)

3. Beta 450RS

The sleek and slim Beta 450RS has made a name for itself with speeds that reach up to 111mph. This bike’s power and lightweight is a perfect match for people looking for a dual-sport bike that is street legal in all 50 states. It has a four-stroke engine that can power out 449cc in displacement. Weighing at 263 pounds, this bike is highly versatile and has n excellent reputation for reliability and performance. When it comes down to road cruising, this bike never disappoints.

How fast is Beta 450RS?

The Beta 450RS can achieve a top speed of 113mph. The Beta 450RS is a lightweight, dual-sport dirt bike that is very comfortable to ride at low and average speeds when riding both off-road and on-road. It comes with a four-stroke engine that can power out 449cc, which results in achieving high speeds.

Top Speed: 110.9 mph (449cc)

4. ATK 700 Intimidator

The general appearance of this mighty Utah beast is intimidating. It delivers a top speed of 110mph. The ATK 700 Intimidator houses a 685cc two-stroke engine capable of punching out a fearsome 78 horsepower. It stands with a proud dry weight of 238 pounds which is considered lightweight for such a monster.

How fast does a 700cc dirt bike go?

The ATK 700 Intimidator is a lightweight dirt bike with 238 pounds of dry weight and a mighty 685cc two-stroke engine. This results in having 78 horsepower and achieving a top speed of 110 mph. The USA made dirt bike have been in the running for fastest dirt bike in the world in quite some time.

Top Speed: 110.9 mph (685cc)

5. Honda XR650L

The highlight of a Honda XR650L is its reasonable price points and good quality. It has an impeccable speed of 110 mph and can do more with proper modifications. The Honda XR650L houses a single-cylinder four-stroke engine that puts out 644cc displacement and produces about 40 horsepower. Honda is a heavy bike with a dry weight reaching up to 349 pounds but its acceleration and speed are simply impressive. It offers excellent versatility and reliability both on and off-road due to its enormous ground clearance and long-travel suspension.

How fast is Honda XR640L

The Honda XR650L can achieve a top speed of 110 mph with some modifications, such as using street tires. That speed comes from its 644cc single-cylinder four-stroke engine that punches out 40 horsepower. Off-road riders with proper dirt bike tires report that the bike is not very comfortable at speeds of 75mph or more.

Top Speed: 110 MPH (644cc)

6. MuZ/MZ Baghira

The physical qualities of this bike are simply outstanding. It has been built with great balance and suspension in mind. The bike has a tall seat and wound build and continues to dominate the rugged terrains despite the company’s market absence. MuzBhagira has a single-cylinder four-stroke SOHC 5-valve Yamaha engine that produces 659cc displacement. It also produces 37 horsepower and breaks at a top speed of 102 mph, making it an ideal option for exploring the mountainsides over the weekend.

Top Speed: 102 mph (659cc)

7. ZERO DSR (Fastest Electric Dirt Bike)

ZERO Motorcycles have some of the fastest electric dirt bikes on the market. The manufacturer has managed to produce super-fast bikes with their grand engineering for some time now. So far, they have the boss of them all, the ZERO DSR. This is a fully dual sport dirt bike that is best known for its adventure purpose.

With speeds of up to 102 mph, this explains why ZERO are some of the most sought-after bikes by dirt bike riders who love protecting the environment. The ZERO DSR has a powerful 70 hp (52 kW) @ 3,500 rpm engine with a 116 ft-lb (157 Nm) of torque. This off-road electric king is fitted with regenerative breaking for efficient battery usage. It has a 7.00 inch suspension travel and weighs 419 lb pounds, giving you maximum responsiveness on the road.

However, if you are considering going electric, you can consider other lighter electric dirt bikes that are more versatile. One of them is the ZERO FX

Top Speed: 102 mph

8. Husqvarna FE 501 S

The Husqvarna FE 501 S dirt bike is a dual-sport machine with a progressive design that runs at speeds of 101.5mph, which is still a top speed for a dirt bike. It has amazing engine performance and a very lightweight design, with a dry weight of 246 lbs. This bike has a four-stroke 510cc engine which comfortably produces 58 horsepower. Who doesn’t love a lightweight bike which picks up such top speeds and acceleration without strain?

Top Speed: 101.5 mph (510cc)

9. Kawasaki KLR650

This bike hails from Japan. It leans mainly on street riding but it is never shy to some off-road time. The Kawasaki KLR650 has a speed of 98mph and features a long swingarm for increased stability. It has a single cylinder and an engine displacement of 651cc with a 40mm throttle body. This bike reaches the dry weight of 456 pounds and is definitely a heavyweight. Over the last few years, we’ve seen an improvement in features of this bike, that continue to make it a superstar on the streets and on the rugged terrains.

Top Speed: 98 mph (651cc)

10. KTM 450 SX-F

While not the fastest dirt bike on this list, KTM 450 SX-F is becoming a legendary off-road machine. 2019, 2020, and 2021 models are making important contributions to KTM’s off-road line. The quality of this bike and the price are on a completely different levels. The KTM SX-F always comes through when it comes to off-road dirt biking.

How fast is KTM SX-F 450?

The KTM 450 SX-F has an impressive speed of 98mph with comfort being on another level. But keep in mind that this reported speed is not under optimal conditions as it takes a tool on its engine due to high RPMs. In real life driving top speed would be around 90mph.

You can check its speed test here.

It has an air-cooled, SOHC, four-stroke single-cylinder engine with a displacement of 450cc. It has a long front 48mm suspension with an adjustable compression damping. This fast off-road motorcycle is 220 pounds in dry weight and is not quite a heavy ride, so it picks up speed easily. If you pride yourself on quality then this is the bike for you!

Top Speed: 98mph (450cc)