Dirt Bikes are a fun way to explore and get into off-roading. Dirt bikes are popular in all age groups from kids to adults. But when it comes to dirt bikes there are lots of bikes with different top speeds (CCs). As the displacement of the dirt bike varies so does the top speed. That’s why in this post, I will discuss the “average dirt bike top speed” for the various displacements. It will help the riders to choose the right CCs dirt bike for them.
The dirt bike can achieve an average top speed of 40 mph to 70 mph. The top speed of the dirt bike greatly depends on engine displacement, strokes (2 strokes vs 4 strokes), and the weight of the rider.
Dirt Bike Average top speed Chart by CCs:-
In this “dirt bike top speed table chart”, I have discussed various CCs dirt bikes that range from 50cc to 450cc.
|Dirt bike CCs||Top speed|
|50cc||25mph – 40mph|
|80cc||40mph – 50mph|
|100cc – 110cc||45mph – 55mph|
|125cc||50mph – 70mph|
|250cc||60mph – 85mph|
|450cc||80mph – 120mph|
Inforgrahpics for Dirt Bikes Top Speed
Engine Strokes in Dirt Bikes:- How do they affect the speed?
The engine strokes are one of the most important aspects that is a deciding factor for top speed in dirt bikes. I have already talked about these engine strokes while discussing the “average top speed of motorcycles”. But, that brief introduction isn’t enough. First, I will just point out the little straightforward differences in these strokes and later explain them.
There are two engine strokes commonly 2 strokes and 4 strokes. Strokes are basically referring to the cycles of the piston or motion of a piston.
So, 2 strokes mean 2 piston cycle is needed to perform the full cycle of intake, compression, combustion, and exhaust. 4 strokes means piston goes up and down two times for each combustion cycle.
2 strokes engine
The two-stroke engine provides more speed and RPM than Four-stroke engines because the combustion takes only two cycles of the piston. Thus, two-stroke engines are more powerful than Four-stroke engines.
So, if you are looking for speed, then two-stroke engines will provide more speed and RPM than the comparable cc with the Four-stroke cylinder design.
But one thing to know here is two-stroke engines are cheaper, less reliable, and less durable than Four-stroke engines. Apart from this, the two-stroke engine starts to vibrate and create a loud noise when driving at high speed.
The two-stroke engine produces a lot of pollution by releasing burnt oil and fuel into the air than four-stroke.
4 stroke engine
Although Four-stroke is not as fast as a Two-stroke engine, it has other advantageous factors.
A four-stroke engine is more reliable, durable, and efficient than a two-stroke engine. It is generally quieter than the Two-stroke engines, thus making it environment friendly.
Typically, four-stroke engines have more parts than two-stroke; thus, it is expensive, and maintenance costs are high.
Four-stroke engines don’t require pre-mixing of oil and fuel like two-strokes. Also, Four-stroke engines are environmentally friendly because it doesn’t release burnt oil in the air along with burnt fuel like Two-stroke engines.
Thus, the final verdict is that you can go with the Two-stroke engine if you are looking for speed. But if you are looking for reliability, durability, and efficiency with then go with Four-stroke engines.
As for now, I have provided the required information regarding the engine-stroked dirt bikes. Now, I will be discussing the main topic of this article. We will be talking about, “how fast do these dirt bikes go?”.
How fast can a 50cc dirt bike go?
A 50cc dirt bike can achieve an average top speed of 25mph to 40mph. KTM 50 SX is the fastest 50cc dirt bike having a top speed of 45mph. The 50cc dirt bikes come into the category of Kids. 50cc dirt bikes are suitable for 4 to 7 years old kids.
So, if you as a parent reading this and looking for something for your child then a 50cc dirt bike has it all. These 50cc dirt bikes have smaller seat height, automatic clutches, and top speed for all the joy any kids would look for.
Here is the list of top 50cc dirt bikes for kids:-
|50cc dirt bikes||Average Age to ride||Top speed|
|KTM SX50||5 to 8 years||45mph|
|Honda CRF50F||4 to 7 years||40mph|
|Husqvarna TC 50||4 to 6 years||45mph|
|Yamaha TTR-50||4 to 6 years||32mph|
How fast can an 80cc dirt bike go?
An 80cc dirt bike can achieve an average top speed of 40mph to 50mph. KTM SX85 is the fastest 80cc dirt bike with a top speed of 65mph. 80cc dirt bikes are suitable for the 7 to 11 year age bracket.
Generally, the top speed depends on the strokes of the motorcycle. So, the 2 strokes dirt bike will be faster than the 4 strokes even with the same displacement.
Here is the list of top 80cc dirt bikes with top speed:-
|80cc dirt bikes||Average Age to ride||Top speed|
|KTM SX85||7 to 11 year||65mph|
|Suzuki RM85||7 to 11 year||55mph|
|Yamaha YZ85||7 to 11 year||50mph|
How fast can a 100cc – 110cc dirt bike go?
The dirt bike of 100cc to 110cc can achieve an average top speed of 45mph to 55mph. Yamaha TT-R110E is the fastest 110cc dirt bike having a top speed of 45mph. These motorcycles are great for 10- 12 years old kids.
If you are a parent looking for a dirt bike for your 10 to 12-year child then there is no better segment than 100cc- 110cc dirt bikes.
Here is the list of top 100cc – 110cc dirt bikes with top speed:-
|100cc dirt bikes||Average Age to ride||Top speed|
|Honda CRF110||10 – 12 years||55mph|
|Kawasaki KLX110||10 – 12 years||50mph|
|Yamaha TT-R110E||10 – 14 years||55mph|
|Kawasaki KX 100||10 – 12 years||65mph|
How fast can a 125cc dirt bike go?
A 125cc dirt bike can achieve an average top speed of 50mph to 70mph. KTM SX125 is the fastest 125cc dirt bike having a top speed of 85mph. 125cc dirt bikes are suitable for children of age between 14 years to 18 years.0
The max speed of the 125cc dirt bikes wary depending on the manufacturers and the amount you are willing to spend. Apart from this, top speed also depends on the engine strokes, the weight of the rider, and the brand itself.
Here is the list of top 125cc dirt bikes with top speed:-
|125cc dirt bikes||Average Age to ride||Top speed|
|KTM SX125||14 to 18years||85mph|
|Honda CRF125F||14 to 18years||65mph|
|Suzuki DR-Z125L||14 to 18years||50mph|
|Yamaha YZ125||14 to 18years||70mph|
|Yamaha TT-R125LE||14 to 18years||65mph|
How fast can a 250cc dirt bike go?
A 250cc dirt bike can achieve an average top speed of 60mph to 85mph. Yamaha WR250R is the fastest 250cc dirt bike having a top speed of 89mph. The top speed depends on engine strokes, the weight of the riders, and the dirt bike brand.
250cc motorcycles are fast enough to give you a chill while off-roading. These dirt bikes are best suited for the ages of children 16 or more.
Here is the list of top 250cc dirt bikes with top speed:-
|250cc dirt bikes||Average Age to ride||Top speed|
|Yamaha WR250R||16+ years||89mph|
|Kawasaki KX 250||16+ years||87mph|
|Honda CRF250F||16+ years||65mph|
|Suzuki RM-Z250||16+ years||85mph|
How fast can a 450cc dirt bike go?
A 450cc dirt bike can reach an average top speed of 80mph to 120mph. KTM 450 SX-F is the fastest 450cc dirt bike that can reach the top speed of 123mph. The top speed of dirt bikes depends on the engine strokes, the brand of the dirt bike, and the rider’s weight.
These 450cc dirt bikes are suitable for any adult looking for getting into off-road. These dirt bikes are packed with power and reliability which will give you a great experience.
Here is the list of top 450cc dirt bikes with top speed:-
|450cc dirt bikes||Average Age to ride||Top speed|
|KTM 450 SX-F||18+ years||123mph|
|Honda CRF450R||18+ years||87mph|
|Husqvarna FC 450||18+ years||123mph|
|Kawasaki KX450||18+ years||100mph|
|Honda YZ450F||18+ years||80mph|
So, for now, we have discussed the top speed of various engine sizes of dirt bikes. The engine size includes 50cc to 450cc. I have also provided you with information on the age group. Thus, you have also able to choose dirt bikes for your children. If you were planning to buy dirt bikes then these top speed measures are going to help you. Although these top speeds can vary depending on the circumstances, maintenance, etc. I am briefing the top speed of the dirt bike once more below.
Here are the top speed of the most popular dirt bike CCs:-
50cc dirt bike:- 40mph
80cc dirt bike:- 50mph
125cc dirt bike:- 55mph
250 cc dirt bike:- 70mph