6 Best 125cc Dirt Bike in 2021

Apollo DB-X18 125cc Dirt Bike

X-PRO 125cc Dirt Bike

Coolster 125cc Dirt Bike

If you are a fan of motorcycles and enjoy riding them, you would definitely love the 125cc dirt bike. Off-road bikes such as dirt bikes are made mainly for use on rough terrains and to conquer obstacles. They have more control and precision compared to speed, but some riders prefer dirt bikes that ride quite fast.

The 125cc dirt bike is one of the most famous dirt bikes available on the market for beginner riders. It is great for young riders who are moving up from smaller 50cc and 85cc bikes. It is also suitable for adults who want to learn how to ride dirt bikes.

The 125cc dirt bike has a smaller engine compared to other models that you may come across, but do not be discouraged by their small engine because they are great when it comes to proper off-road riding. They are known for their ease in maneuverability which makes them great for beginners, and their easy-to-manage power bands and choices between a 2-stroke or 4-stroke model make them even greater.

Some 125cc dirt bikes can reach speeds of up to 45 mph, while other models can reach higher speeds of up to 75 mph. You could also tweak your bike to let you reach speeds higher than 75 mph. However, doing those tweaks can cause you to lose control over your dirt bike.

Even though most 125cc dirt bikes mostly target teenagers, there are others that are best suited for adults. In this article, we will be looking at a list of the best 125cc dirt bike, along with their features and drawbacks. We will also provide you with various details, such as their engine type and performance.


Endure and Motorcross require you to use vital physical and mental processes. Teenagers can learn various techniques for braking, jumping, cornering, accelerating, and negotiating technical sections. Please do not put a kid on a dirt bike that scares them; the fear will turn into a lack of aggression, causing them to ride tight, leading to the increased risk of crashing.

Young riders that are moving up from smaller classes of dirt bikes will notice that small wheel 125cc dirt bikes offer more power with easier handling than larger dirt bikes. A kid who is trail riding for fun or competing in Endure or Motorcross should go for a small wheel 125cc dirt bike before considering moving on to a larger dirt bike.

When it comes to adults and 125cc dirt bikes, the same theory that goes for kids applies to adults. Powerful and aggressive dirt bikes with larger engines may look enticing, but keep in mind that dirt bikes can be extremely powerful, especially those that use a 2-stroke engine. Adults who are beginners need to consider a lot before choosing a dirt bike.


If you’re a beginner when it comes to riding dirt bikes, you’ll need to learn the basic techniques first. It is better to gain experience with a 125cc bike at its full potential than using a larger dirt bike at half its potential. The experience you will get from using a 125cc dirt bike at its full performance and learning the limit of the bike will make you a much more capable rider.

Most dirt bikes come with tall seats, so riders who find it uncomfortable to use a tall seat dirt bike will appreciate a 125cc dirt bike’s lower height. It is easy to sell off a second-hand dirt bike. You can purchase a 2-stroke 125cc dirt bike, and be sure it would be easy for you to sell it for a good price when you are ready to move to a higher dirt bike.


Power to weight ratio is a major problem with small engine bikes. If you are of a larger build, you may not have enough riding power with a 125cc dirt bike to compete in races.

Maybe you already ride fast bikes on the road; if you do, you already have the skill and confidence needed to control fast bikes. If this describes you, we suggest that you opt to test ride a 150cc and 250cc dirt bike. You should have enough skill to make the necessary judgments.


It has been an age-old debate on which is better, a 2-stroke or 4-stroke dirt bike. However, there is never a satisfactory answer because both have their weaknesses and strengths that you should consider and also consider the experience you have as a rider before choosing either one.

2-stroke 125cc dirt bikes are simple, strong, and more powerful than the 4-stroke, but they are a bit harder to handle, and you have to mix the fuel with oil. On the other hand, 4-strokes are easier and smoother to ride and are simpler for beginners to use, but they require more skilled maintenance and cost more in the long run. You also have to consider that 2-strokes are beginning to phase out, the 4-strokes tend to burn cleaner, and these days most brands do not have 2-stroke options in their lineup. When it comes to 2-strokes and 4-strokes, there is a lot to consider.


Like we stated earlier, 125cc dirt bikes are available in both 2-stroke engine and 4-stroke engine. When it comes to speed, the 2-stroke engine usually has a higher speed ratio compared to the 4-stroke engine, which translates to a higher power per pound.

It is important that you know that the 2-stroke engine uses exhaust and intake ports instead of valves, and this goes a long way to save cost and also reduce the weight of the valve train.

Because the 2-stroke is made in a way that they use a higher RPM, they tend to wear out faster than the 4-stroke engines. Generally, the 4-stroke engine is more durable. However, the best part about a 2-stroke engine is that they are generally easier to fix in comparison to their 4-stroke counterparts.


Dirt bikes that have an engine capacity of 125cc can reach top speeds of up to 55 to 60 miles per hour.

If you are riding on a downhill road condition or a heavy rider, you may alter the operating speeds, which may be higher than the indicated ones. But, majority of manufacturers of dirt bikes advise against doing this because of security reasons.

The primary factor determining the speed of a 12t5cc dirt bike is the engine capacity, but there are other factors that include engine size, modifications, and sprocket gearing. If you choose to ride your 125cc dirt bike with its complete stock sprocket gear, then you will be able to reach speeds of up to 70 miles per hour when you’re riding with such high gear.


The two common categories in the dirt bike industry are electric and gas-powered dirt bikes. Yes, the electric option is more quiet, effortless to maintain, and can even be smoother. But it depends on how long the wires last and if the battery holds up in the long run.

With that been said, most dirt bike enthusiasts enjoy feeling the combustion engine. For this reason, gas-powered dirt bikes have the upper hand over electric-powered models.

If you would like to move from one place to another in a speedy manner, then the electric bikes will be best suited for that. But if you would prefer the original power of propulsion and get the rewarding feeling of having a full tank, shifting gears, and auto clutch, then go for the gas-powered dirt bike.


There are numerous features that you should consider before choosing a 125cc dirt bike. Some dirt bikes have affordable prices and offer medium to low features that help the user. However, you should choose a dirt bike that will serve you for a long time. Below are some important factors that you have to consider.

Engine Displacement

The dirt bike you choose should have an air-cooled engine with an ideal displacement. If you are still learning about dirt bikes, then a 125cc dirt bike with one cylinder would provide you with a memorable experience on any terrain. However, do for one that comes with an engine that features the maximum capacity to deal with the right quantity of fuel.

Transmission and Suspensions

Some bikes come with front and rear suspensions alongside telescopic forks, while others come with pro-li. rear suspensions that deliver speed with high resistance. When it comes to transmission rate, the ideal gearbox speed should be between 4 to 5 gears, usually available in 125cc 4-stroke dirt bikes. When you’re purchasing a dirt bike, ensure you check that the transmission rate comes with the right gearbox.

Frame and Size

The frame of the 125cc dirt bike you choose should be made from high-quality materials such as steel. The lightweight nature of the material is great for beginners to get the hang of, and it’s also suitable for experts. The bike size should be small with a low height seat to provide the ideal small-sized dirt bike option.

Price and Warranty

125cc dirt bikes vary in price, but you should be able to get one with feasible buying options. The warranty on the bike’s frame is usually for one year, while other parts of the bike have a variable warranty that differs for every brand.


Manufactures of 125cc dirt bikes aren’t a lot in the USA. Most big manufacturers focus their production power on making smaller capacity models such as sub to 100cc models, or they go straight for the 250cc models. However, most large brands have a least one 125cc dirt bike in their lineup, but even with that, you don’t have much of a choice. You could also look into specialist brands, they may be more expensive, but you receive what you pay for.

However, if you are looking for a dirt bike to trash around without spending a lot of money, you could find one from a no-name Chinese brand; that way, you won’t have to commit to something proper. We recommend that you go for the tried and tested well-known brands such as Kawasaki, Honda, Suzuki, KTM, Yamaha, and Husqvarna. You could also consider some specialist brands such as Beta Motorcycles and Sherco. There are numerous dirt bikes available on the market that are worth considering.

It might not be easy to simply select any 125cc dirt bike; that is why we have made it easier for you by providing you with a list of the best 125cc dirt bikes available on the market. We included brands you can trust, with easy access to services and parts. Each of the bikes on the list has something unique that you would definitely admire. Let’s take a look at the list.

The Best 125cc Dirt Bikes Are Reviewed Below

Below is a comprehensive list of the best 125cc dirt bikes, along with their specifications, key features, pros, and cons. Having all this information will allow you to make an informed choice when selecting the best 125cc dirt bike.


Apollo DB-X18 125cc Dirt Bike

This dirt bike from Apollo is one of a kind. It was made with a 4-stroke engine with a single-cylinder; even though the cylinder comes in a small size, it still compliments the bike’s inadequacy when it comes to power.

If you are in search of a dirt bike that will provide you with an ultimate fun experience on a freestyle ride or an off-road race, then this dirt bike will definitely make you happy. One reason why you should consider getting it is because it comes with a maximum speed of up to 55 mph.

Therefore, it will allow you to maneuver through rough terrains with little to no stress, so you can have all the fun you want. It comes with a 6.5 kW/ 7500 rpm.

However, it is vital that you know that the speed may vary depending on the weather condition. To help this is a 4-speed manual clutch transmission that comes with front and rear hydraulic brakes. The front and back suspensions are non-adjustable; they are placed at 750 mm and 320 mm each. You can easily swerve through off roads with its 17 inches and 14 inches front and rear tires.

This dirt bike basically has everything you would want in a 125cc dirt bike, so consider getting it today.

Key Features:

  • 4-stroke engine
  • Single cylinder
  • 17 inches front tire, 14 inches rear tire
  • 4-speed manual clutch
  • A seat height of 36.5 inches
  • Front and rear hydraulic disc brakes
  • Kick start
  • Air-cooled
  • 6.5 kW/7500 rpm maximum power


  • Brand: Apollo
  • Model: Apollo DB-X18 125cc Dirt Bike
  • Net Weight: 147.7 lbs
  • Gross Weight: 180.8 lbs
  • Fuel Capacity: 1.03 gallons
  • Color: Blue
  • It has an appropriate seat height
  • It offers you good maneuverability
  • Its frame design is great
  • The quality of the carburetor may not be to your liking
  • Ensure you keep an eye on the smaller fork bolts


X-PRO 125cc Dirt Bike

This bike comes with a few features that you may like. It comes with a 4-stroke engine and a semi-automatic transmission that is supported by a semi-auto clutch, and this makes the bike a great choice for beginners who are learning to handle dirt bikes.

Its front and rear wheels have the right size at 14 inches and 12 inches, respectively, and they allow you to maneuver your way around tracks and terrains of different natures.

If you’re a beginner, you may need help in assembling this bike before you go off-road with the bike, as it requires expertise. But do not worry, it isn’t all that complicated. Majority of the assembling that you would have to do concerns the wheels and brakes handlebar brackets, and at least we forget the fender and number plate. It shouldn’t be too difficult to assemble these parts.

This 125cc dirt bike comes with a maximum speed of 60 mph, but it could change depending on your weight.

Key Features:

  • Semi-automatic clutch
  • 14 inches front wheel, 12 inches rear wheel
  • Front and rear hydraulic disc brake
  • 420 gold chain
  • 14T front and 41T rear sprocket


  • Brand: X-PRO
  • Model: X-PRO 125cc Dirt Bike
  • Weight: 225 Pounds
  • Color: Blue
  • Seat Height: 31.5 inches
  • Fuel Tank: 1 gallon
  • It is comfortable to ride
  • It has an easy setup
  • The size is just perfect
  • You have to keep a close eye on the carburettors condition


Coolster 125cc Dirt Bike

This bike will give you a good time while you’re riding off-road. When looking at any bike, you should consider your biking skills and the terrain you intend on riding on.

This bike is constructed with a single-cylinder 4-stroke engine that has a 125cc displacement. The power produced by this bike is amazing; it offers you 4.72/7500 kw/r/min. It also comes with a maximum speed of 67 km/h and a CDI starting system.

It also comes with a manual clutch and chain drive. The force of the rear wheel moves the bike while it’s controlled by the front and rear disc brakes. Anyone would love to take this off-road bike riding but keep in mind that it can only hold a maximum load amount of 220 lbs.

Key Features:

  • Air-cooled single-cylinder 4-stroke semi-automatic engine
  • Maximum torque of 7.82 / 5500 N.m/r/min
  • Kick start engine


  • Brand: Coolster
  • Model: Coolster 125cc Dirt Bike
  • Weight: 170 Pounds
  • Dimensions: 62.99 * 42.52 * 29.53 inches
  • Color: Green
  • It has a suitable seat height
  • It is easy to handle
  • With the help of a professional, its quite easy to assemble
  • The rear brake pads may be too tight sometimes
  • The thin plastic plates tend to crack easily


Taotao DB17 125cc Dirt Bike

When you about good quality, this bike is it. It comes with the perfect transmission with an excellent engine size. This bike is a great 125cc dirt bike.

The TAO TAO comes in a great size. It has a stand-out seat size of 34 inches in height with a ground clearance of 13 inches. It is constructed with a 1 cylinder 4-stroke engine that is air-cooled. Its engine gear comes with 4-speed controls, which go through gears 1-N-2-3-4. The 4-stroke engine of this bike allows riders to easily change gears and enjoy a maximum speed of more than 55 mph. be ready to enjoy your riding experience.

This bike can support weights of up to 230 pounds, so both children and adults can use this bike. Experienced riders tend to use this bike to perform stunts because its design supports stunts and makes it easy to achieve. The design of the bike also supports safety. The control and balance of this bike are impressive, which is why most stunt artists prefer it.

This bike also uses a hydraulic brake system that is controlled using the front hydraulic disc hand brake. The rear end is controlled using a foot brake. However, if you do not have a lot of experience when it comes to dirt bikes, you may need the help of a professional to assemble the parts of the dirt bike. Depending on the exposure you have with bikes, the task of assembling might be simple or a bit complex.

Key Features:

  • Air-cooled 4-stroke 1 cylinder engine
  • 4-speed engine gear with manual transmission
  • Hydraulic disc hand brake
  • Hydraulic disc foot brake
  • 70/100 front tire, 90/100 rear tire
  • A common rear suspension


  • Brand: Taotao
  • Model: Taotao DB17 125cc Dirt Bike
  • Weight: 300 Pounds
  • Dimensions: 70 * 30 * 43 inches
  • Color: Black and White
  • It has the perfect size
  • It is made from high quality materials
  • It is durable, strong, and sturdy
  • It has impressive speed and control
  • It can withstand weights of up to 230 pounds
  • It is ideal for stunts
  • It is CARB approved in California
  • Assembling the bike may take time
  • It is not suitable for children younger than 12 years


Apollo DB-007 125cc Dirt Bike

This bike from Apollo is built similarly to its predecessors; it comes with a 4-stroke single-cylinder engine that has a displacement of 125cc.

It is air-cooled and rides at a maximum speed of 55 mph, but the speed may change depending on the terrain you’re using it on. Another important determinant is the weight of the rider. This bike weighs a little lower than many other dirt bikes, but its size makes it easy to maneuver through rough terrains and tight spaces without any issues.

The engine size and quality of this bike make it easy to use on any rough terrain. It has an effective engine power that provided you with enough control to make your riding experience more fun.

It comes with a maximum power of 10 KW and has transmissions that are supported by a 4-speed manual clutch. It also features non-adjustable suspensions for the front and rear that are measured at 760mm and 320mm, respectively. It has a seat height of 36.5 inches with a 17-inch front wheel and a 14-inch rear wheel. This bike is ideal for off-road trips.

Key Features:

  • 4-speed manual clutch
  • Qir cooled
  • Twin spare heavy-duty steel
  • Ignited with a kick start
  • 17 inches front wheel and 14 inches rear wheel


  • Brand: Apollo
  • Model: Apollo DB-007 125cc Dirt Bike
  • Weight: 148 Pounds
  • Dimensions: 52 * 15 * 28 inches
  • Color: Black
  • It is a powerful 125cc dirt bike
  • It has a good seat height
  • It offers you great maneuverability
  • It is lightweight
  • It has an elegant appearance
  • It is ideal for beginners and youngsters
  • It has a sturdy and strong design
  • It is quite expensive
  • A customer has said the bike fell off during a race
  • It doesn’t come with headlights and turn signals


Apollo AGB 37 125cc Big Size Dirt Bike

This dirt bike comes with exceptional features. It has an attractive design that any rider would love.

The Apollo brand produces some of the best Chinese 125cc Motorcross bikes available on the market. This model is one of the top-selling 125cc dirt bikes, thanks to its reputation in reliability and performance.

It comes with good quality 17-inch tires that can steadily run through any terrain. The tires and wheels reduce the chances of an accident, so this means they are a form of safety enhancers. The tires do not wear out easily, even if you use the bike constantly.

It is known that the quality of the handlebar will determine a lot when it comes to maneuverability and balance. The handlebars were well constructed; they were made to be durable and strong. It allows an expert rider to make close turns quite swiftly. The best part about it is that you can do all that without worrying about losing your balance.

The cylinder in this dirt bike has been designed to enhance the steadiness and general balance of the bike. With little effort from the rider, maintaining this bike on the track is quite easy to accomplish.

Key Features:

  • Single barrel 4-stroke air-cooled motor
  • Well balanced carburetor settings
  • Pressure driven and quick brakes
  • High-quality CNC machined triple clasps
  • Manual clutch drive


  • Brand: Apollo
  • Model: Apollo AGB 37 125cc Dirt Bike
  • Weight: 250 Pounds
  • Dimensions: 66.93 * 30.71 * 43.31 inches
  • Color: Black and Red
  • It is designed from lightweight materials
  • It has a durable tube that provides the bike with a high degree of steadiness and solidness
  • It offers you a fun experience even on uneven roads
  • The swingarm of this bike has been enhanced for higher utilitarian dependability
  • It has a high response to the adjustable fork
  • This dirt bike needs complete assembly

Buying Guide Questions

Below are answers to some frequently asked questions about dirt bikes.

What age is a 125cc dirt bike for?

A 125cc dirt bike is suitable for children 10 years and above.

Is a 125cc dirt bike big enough?

A 125cc dirt bike can be an ideal bike for tall children and adults with a lighter weight. The bike offers a decent seating position without having too much power.

Is a 125cc dirt bike fast? Which 125cc 2-stroke is the best?

125cc dirt bikes have top speeds that range between 55 to 60 miles per hour. Different conditions such as a downhill road can cause the bike to go beyond that speed range.

There are numerous 2-stroke 125cc dirt bikes that are of great quality, but our top favorite is the KTM 125 SX 132.5.

Is 125cc enough? What size bike is good for a 14 year old?

If you’re a beginner, a 125cc dirt bike will be suitable for you. There isn’t much if a difference between these bikes except for weight and power. If the power and speed of a 125cc is alright for you, then it’s a wonderful choice.

If the 14-year-old weighs about 150 lbs, a 250cc dirt bike would be suitable, but also take into consideration the skill set of the child. A 14-year-old child could ride dirt bikes of 250cc to 450cc.

Is a 125cc dirt bike worth it? How fast is 125cc?

125cc dirt bikes might have a small displacement, but they provide you with a fun riding experience.

A 125cc dirt bike can reach speeds of up to 60 km per hour, making it great for long journeys.

Is a 125 a good starter bike?

A 125cc dirt bike is a great beginner bike; it has enough power for a beginner to control without any issues. They are cheaper and easier to repair compared to their counterparts.

Which is a faster 2-stroke or 4-stroke dirt bike?

2-stroke engines are lighter and faster than the 4-stroke engine; they have an intense motor kick that provided you with top speeds. Even though they need more frequent shifting, you’ll be able to get faster top speeds with more power.

How fast is a 125cc 2-stroke?

A 125cc 2-stroke dirt bike can reach top speeds of up to 70 miles per hour.


125cc dirt bikes are great for beginners as they slowly introduce you to the world of dirt bikes, but to make an informed decision, you’ll have to take into consideration the features you want in your dirt bike. You should go for a bike that would serve you optimally for a long time.

With the information provided above and the product review list, you should be able to choose a 125cc dirt bike that will serve you well or use the list as a guide to finding the dirt bike you want.