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125cc dirt bike speed in Mph? 2-Stroke vs. 4-Stroke 

A 125cc dirt bike is the best option for a beginner. The top speed of a 125cc dirt bike, which won’t be the world’s fastest bike but can get there, will be covered in this article.

The peak speed of 125cc 2-stroke dirt bikes is over 70 mph, whereas the top speed of 125cc 4-stroke bikes is around 50 mph.

The 125 cc dirt bike and the rider’s level of expertise and experience will both be important factors. On the bike, someone who is half their weight will be able to move considerably more quickly than their heavier counterpart.

The brand makes a difference; for instance, a Honda 125 cc dirt bike accelerates somewhat faster than a Yamaha 125cc dirt bike.

I determined the average speed I mentioned using information from a sample of bikes representing various models. Although we will examine a standard motorcycle in this article, it is feasible to make little changes that will significantly boost its speed.

dirt bike

How can I speed up my 125cc dirt bike? Some tricks 

Replacement of the exhaust pipe

It is one of the most common and also one of the most straightforward adjustments available. In terms of performance, a 4-stroke scooter will gain between 1 and 2 horsepower.

We recommend you consider the emissions and road rules before purchasing a new exhaust for your motorcycle, as our new exhaust must be homologated.

aumentar-potencia-scooter-125cc-escape

A performance exhaust pipe designed to increase the power of a 125cc scooter.
Alter your motorcycle’s radiator.
The variator is the component that transfers the engine’s power to the transmission system. Most scooters squander the most power at this stage since they do not typically take advantage of the torque generated by our scooter’s engine.

It is one of the most recommended alterations if you want to benefit from your engine’s power because we will be able to convey it to our back wheel via the belt.

aumentar-potencia-scooter-125cc-variador

A JCosta speed variator is used to boost the power of a 125cc scooter.
Alter the motorcycle’s circuitry.
This is your modification if you want to boost the bike’s power to your taste and directly adjust the engine map of our scooter and its injection. It’s similar to changing the carburetor on a motorcycle but for an injection model.

We must exercise extreme caution since it is likely that by adjusting the injection and engine map, the engine’s emissions may increase, and we will fail to meet environmental laws.

Furthermore, it may jeopardize the integrity of our engine for a use for which it was not designed. We hope you found this post interesting and that you learned how to boost the power of your 125cc motorcycle.

At JCosta, we are experts in 125 cc dirt bike scooter performance factors, ensuring your vehicle’s proper operation and integrity. If you want to improve your scooter, come to our store, and you will discover all of the highest quality components for your model at the best price.

What’s the Best 50cc Dirt Bike for Kids?

Comparing a 125cc Dirt Bike with Others 

  1. Numerous factors, such as your riding experience, height, and weight, should be considered while picking the best  125 cc dirt bike.
  2. Depending on your experience level, you may choose to go with a bike with a bigger or smaller engine, giving you more or less power.
  3. Your height and weight will determine how high you sit on your seat.
    There is a wide variety of dirt bike sizes available; when selecting the right one, you should consider seat height and engine displacement.
how fast can a 125cc dirt bike go

Top 5 125cc dirt bikes and their speed 

TT-R125LE dirt bike

Yamaha has created the ultimate balance of power and comfort with their TT-R125LE dirt bike. Its air-cooled, reliable four-stroke engine means you can cruise in both control and comfort.

Husqvarna TC-125

The Husqvarna TC-125 is a top-tier 125cc dirt bike, and its user-friendly design makes it accessible to almost everyone. In addition, it has a high level of power and professional-grade ergonomics. This way, you can experience the comfortable travel you’ve always dreamed of.

Honda CRF 125-F

The Honda CRF 125-F lives up to the brand’s reputation for producing rugged and potent dirt bikes. With these two upgrades, you’ll have a convenient and cutting-edge bicycle.

Apollo DB-X18

You may choose from several great options, but one of the best is the Apollo DB-X18. With the help of its four-stroke engine, this bike is highly effective and efficient.

One of its best features is its 1.03-gallon cylinder capacity, which allows for brisk acceleration and smooth gear. Built with a solid frame, this bike will give you a boost in performance.

TM MX 125 125cc dirt bike

The Italian-made TM MX 125 125cc dirt bike is quick and easy to shift gears on. The manufacturer produces many high-quality motorcycles with various engine sizes, but its TM MX 125cc dirt bike stands out as a top pick within its category.

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Different factors affect the speed of a 125cc dirt bike 

Heavy brakes and acceleration 

A driver event in which greater force than usual is delivered to the vehicle’s accelerator or brake system is called hard acceleration or braking. This is known as ‘lead foot syndrome’ by some, and it can indicate aggressive or risky driving behavior.

Exhaust System 

You should update your exhaust to get the most out of your bike. The exhaust also aids the engine in expelling gases more quickly and efficiently. The engine runs better when it is breathing better.

Low pressure in the tires  

Your speed is affected by the amount of rolling resistance. In a lab, increasing tire pressure reduces rolling resistance. (Great!) However, on concrete, your rolling resistance lowers to a point before dramatically increasing, making you slower.

fastest 125cc dirt bike

Conclusion

Your budget will determine the most fantastic 125cc dirt bike for you. However, if you look around long enough, you can find out how fast a 125cc dirt bike can go. Determine Its Maximum Speed, and you’ll find one that works for you.

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