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Reading Time: 18 minutesLast Updated on June 27, 2026 by Paul Clayton
Table of Contents
10 Best 50cc Dirt Bikes for Kids
Key Takeaways
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- The Combustion vs. Electric Shift: While 50cc youth dirt bikes are traditionally defined by small internal combustion engines, the landscape now includes high-performance electric alternatives like the Cobra CX5E. This electric model eliminates gas, oil mixing, and exhaust heat while delivering rapid acceleration and snappy handling that rivals top-tier gas minicycles.
- 2-Stroke vs. 4-Stroke Power Delivery: Engine stroke configuration is the most critical safety and performance factor for young riders:
- 2-Stroke Engines (KTM 50 SX, Cobra CX50, SSR SX50-A): Liquid or air-cooled, these engines offer aggressive acceleration and high power-to-weight ratios. They are ideal for racing but can have an abrupt power delivery that is difficult for inexperienced kids to tame.
- 4-Stroke Engines (Honda CRF50F, Yamaha TT-R50E, Suzuki DR-Z50): These air-cooled engines deliver smooth, predictable power bands. They are highly beginner-friendly, inherently more fuel-efficient, and feature higher compression ratios (up to 10.0:1).
- Transmission and Starter Usability: For true novices, single-speed automatic transmissions (found on KTM, Yamaha PW50, and Cobra models) are preferred because they let children focus entirely on balance and throttle control without the distraction of shifting. Conversely, 3-speed automatic transmissions (Honda, Suzuki, Yamaha TT-R50E) offer better torque control but require more skill. Features like push-button electric starters drastically improve convenience over traditional manual kick-starters.
- Premium Racing Infrastructure vs. Budget Pit Bikes: Elite models from KTM and Cobra exceed $4,000 to $5,000, justifying their price tags with fully adjustable, long-travel suspension systems (up to 9.7 inches of rear travel), hydraulic disc brakes, and high ground clearance (over 9.5 inches). On the opposite end, entry-level pit bikes like the SSR SX50-A offer an ultra-affordable, lightweight (48.5 lbs) alternative, though they sacrifice heavy-duty component durability and advanced suspension tuning.
- Crucial Safety and Fit Metrics: Engine size alone does not guarantee safety, as 50cc bikes can reach speeds between 25 and 40 mph. Parents must prioritize bikes equipped with adjustable throttle limiters to mechanically cap top speeds. Proper sizing requires that a child be able to touch the ground firmly with both feet while seated; physical weight is also vital, as lighter bikes (ranging widely from 48 to 126 lbs) are far easier for a child to recover from if trapped underneath during a fall.
Introducing the 10 Best 50cc Dirt Bikes for Kids, a comprehensive guide designed to help parents and guardians choose the perfect dirt bike for their young ones. But there is a wrench in the list, and no, it’s not a more or less cubic-inch bike. It’s an electric model.
This list includes top-notch models that are not only fun and thrilling but also ensure safety and durability. These 50cc dirt bikes are perfect for kids who have a passion for outdoor adventure and are eager to explore off-road terrains.
Each bike listed in the 10 Best 50cc Dirt Bikes for Kids has been carefully selected based on performance, safety features, brand reputation, and user reviews. Stay tuned to learn more about these amazing bikes that could potentially ignite your child’s adventurous spirit.
Well, we think that we have a few decent options to offer. To be more precise, we’ve compiled a list of what we think are the 10 best 50cc dirt bikes for kids out there!
10 Best 50cc Dirt Bikes for Kids
KTM 50 SX
Up first on our roundup is the 50 SX MINI dirt bike by KTM. If you have a budget and want a high-quality, high-performance dirt bike for your kid,this one may be a great choice.
KTM boasts that this dirt bike is produced from top-quality components, just like adult bikes. Well, the appearance of this bike alone is pretty telling of the quality. And then you, of course, have the almost $4,000 price tag, which only a high-quality dirt bike can have.
A liquid-cooled 49cc 1-cylinder 2-stroke engine powers this little guy. The cylinder has a bore of 39.5m and a stroke of 40mm, which is pretty typical of around 50cc dirt bikes.
Since the engine is 2-stroke, this dirt bike is going to be pretty good when it comes to acceleration and power. With that said, it may be a little difficult for inexperienced kids to tame, which is important to keep in mind.
The transmission in the 50 SX MINI bike is a single-speed automatic. Such a transmission should provide your kid with sufficient control over the bike’s power, and it should make riding this beast a little easier for your kid since they won’t need to worry about shifting gears.
The suspension here is also excellent – the front inverted fork has a whopping 8 inches of travel, while the rear shock absorber boasts around 5.8 inches of travel. This is much more than what you are going to see in many other 50cc dirt bikes out there.
Not only that, but the front and rear suspension here are both fully adjustable, which is great if your kid is looking for optimum performance in their dirt bike.
Remarkably, this dirt bike also has front and rear hydraulic disc brakes, so its braking performance should be excellent. Besides, the brakes of this bike will be much better than the drum brakes found on some of the dirt bikes we’ll see later on in the roundup.
The last thing to mention about this dirt bike is its short frame, which makes the 50 SX MINI particularly good for younger kids.
- Pros:
- Fully adjustable suspension with plenty of travel.
- Powerful hydraulic disc brakes.
- Single-speed auto transmission.
- Cons:
- The 2-stroke engine isn’t the easiest to tame.
- Expensive.
KTM 50 SX FE
Up next is the KTM 50 SX dirt bike, which essentially is a bigger variant of the 50 SX MINI bike we’ve just overviewed. As such, the core features in the two dirt bikes are the same, with the key difference between the models being the taller stature of this bike.
And due to the taller frame, the KTM 50 SX is a better option for older and taller kids, even though both 50 SX dirt bikes are advertised for kids aged from 4 to 10.
The technical specs in the 50 SX are the same; you have the same 49cc 2-stroke engine with a single cylinder (39.5 mm bore and 40 mm stroke), the same automatic single-speed transmission, and the same disc brakes. In terms of controllability and performance, this dirt bike shouldn’t be too far off its mini variant.
The build quality is similar, though the 50 SX costs about $500 more than the MINI. And, of course, you have excellent suspension, though the rear shock absorber’s travel is around 7.3 inches, which is roughly 1.5 inches longer than in the MINI.
- Pros:
- Excellent long-travel suspension.
- Powerful hydraulic disc brakes.
- Single-speed auto transmission.
- Cons:
- The 2-stroke engine is relatively difficult to control.
- Expensive.
Honda CRF50F
The Honda CRF50F is a pretty good option if you don’t need a top-performance 50cc dirt bike. This isn’t the cheapest 50cc dirt bike out there, but it does offer a great balance between price and performance.
In this dirt bike, you have an air-cooled 49cc single-cylinder (39 mm bore & 41.4 mm stroke) 4-stroke engine. The good thing about the 4-stroke engine is that it’s going to be smoother and easier to control than the 2-stroke engines that the KTM dirt bikes come with. On the other hand, this engine isn’t going to be as good in terms of acceleration and power.
The CRF50F dirt bike also boasts a three-speed transmission. This transmission is going to require some skill to operate, but it could provide your kid with better control over the bike’s power band.
The 10.0:1 compression ratio of this dirt bike is also remarkable. This is a pretty high compression ratio, and what it basically means is that this dirt bike is going to be quite fuel-efficient. It also means that you will have to use higher-octane fuel to uncover this bike’s potential.
The suspension here is solid, with 3.5 inches of travel in the front and 2.8 inches in the rear. This is far less than what the KTM dirt bikes are capable of, but it’s quite decent, especially when paired with the 5.8-inch ground clearance.
The brakes are drum brakes, so they aren’t going to be as effective as the disc brakes on the KTM dirt bikes. For the low price, though, it’s difficult to complain. This is a great dirt bike for kids, and it has plenty of interesting features that make it a great buy for the money.
- Pros:
- Pretty inexpensive.
- Easy to control 4-stroke engine.
- 10.0:1 compression ratio.
- Decent suspension travel.
- Cons:
- The 3-speed transmission requires more skill from your kid.
Yamaha PW50
The Yamaha PW50 dirt bike is priced close to the Honda CRF50F dirt bike, but it’s quite a bit different.
The first difference to catch the eye is the air-cooled 2-stroke engine – it’s going to have more abrupt power delivery, and it’s going to be relatively difficult to tame. The cylinder here is slightly different as well, with its 40mm bore and 39.2mm stroke.
Another thing that’s different in this dirt bike is its off-road performance. The PW50 dirt bike has shorter 2.4-inch travel in the front and 2-inch travel in the rear, so it’s going to be somewhat worse than the Honda dirt bike off the road. Add to this the shallower ground clearance of 3.7 inches, and you get a bike that isn’t as good at overcoming obstacles.
This isn’t necessarily bad, though. If you don’t want your kid to jump around too aggressively, the shallower clearance and suspension travel in this bike may make them more cautious about what they are doing and where they are riding.
What we also like about this dirt bike is that it’s around 20 pounds lighter than the Honda dirt bike, which may matter to some people.
The last thing to keep in mind with this dirt bike is its low 6.0:1 compression ratio. On one hand, you may use less expensive low-octane fuel to power this thing. On the other hand, it’s not going to be as fuel-efficient as something like the Honda dirt bike with its 10.0:1 compression ratio.
- Pros:
- Not too expensive.
- Weighs just 90 pounds.
- Single-speed auto transmission.
- Cons:
- Low compression ratio.
- Max ground clearance is just 3.7 inches.
- The 2-stroke engine is a bit difficult to control.
Yamaha TT-R50E
For a little more money, the Yamaha TT-R50E dirt bike is quite a significant upgrade from the PW50 bike. This doesn’t mean that this dirt bike is going to be better for your kid, though.
The air-cooled engine here is 4-stroke, so it’s going to have smoother and more predictable power delivery, which is nothing new for us. The cylinder here is quite different, though – it has a smaller 36mm bore and longer 48.6mm stroke, which implies a few interesting effects.
A longer stroke generally means better operation in a lower RPM range, increased torque & power, increased fuel consumption, and slower revving to max RPM. On the other hand, the smaller bore is going to tone down the fuel consumption of this dirt bike a bit, as well as reduce its power.
Overall, what this implies is that this dirt bike is going to be better at lower ranges. In other words, this bike should be better at overcoming obstacles and steep inclines.
The compression ratio here is pretty high, 9.5:1, to be exact. As we already know, such a high compression ratio implies better fuel efficiency, but you will need to use more expensive high-octane fuel.
The suspension travel here is decent, 3.8 inches in the front and 2.8 inches in the rear. Paired with a max ground clearance of 5.3 inches, this means much better off-road performance than the Yamaha PW50 dirt bike.
One feature that should also be noted in the TT-R50E dirt bike is its electric starter. This feature allows you to start up the dirt bike with the push of a button. This isn’t something you must have, but it makes this dirt bike a little convenient.
One thing you may dislike about this dirt bike is its weight of 126 pounds. It’s pretty heavy – 36 pounds heavier than the Yamaha PW50 and 16 pounds heavier than the Honda CRF50F dirt bike. This isn’t a problem per se, but it may be a big issue for some people.
- Pros:
- Easy to tame 4-stroke engine.
- Not too pricey.
- Push-button electric start.
- 9.5:1 compression ratio.
- Decent suspension travel.
- Cons:
- Weighs 126 pounds.
- Revs up to max RPM slower.
- 3-speed transmission.
Suzuki DR-Z50
The Suzuki DR-Z50 dirt bike is a good alternative to the Yamaha TT-50RE dirt bike. More precisely, if you don’t like the idea of slow revving in the Yamaha bike, then the DR-Z50 bike may be a better option.
At the base level, the two bikes are similar. Namely, they both have air-cooled 4-stroke engines, and the compression ratio of this bike is pretty close to that of the TT-50RE – 9.7:1, to be exact. In terms of fuel efficiency and fuel requirements, the two dirt bike models should be similar.
The cylinder here is a more conventional one – it has a 39mm bore size and a 41.8mm stroke. With the much shorter stroke, this bike is going to be worse in the lower RPM range but better at the high end. The shorter stroke also means less fuel consumption, while the larger bore implies a little bit more power.
The suspension travel in this dirt bike appears to be decent. Suzuki indicates that the travel in the front is 3.8 inches, but they say nothing about the rear suspension travel. The ground clearance is indicated at 5.3 inches, which should mean similar off-road performance to what the Yamaha TT-50RE delivers.
The last thing to mention about this bike is its weight – while this bike is 7 pounds lighter than the TT-50RE, 119 pounds of weight still makes it a pretty heavy unit.
- Pros:
- Quite cheap.
- Easy to control 4-stroke engine.
- High compression ratio.
- Decent transmission travel.
- Cons:
- Weighs 119 pounds.
- 3-speed transmission.
Cobra CX50 FWE
The KTM kids’ dirt bikes we reviewed at the very beginning seemed pretty rad, right? Well, the Cobra CX50 FWE dirt bike is even better! If you are ready to pay slightly over $5,000 for a dirt bike, then this guy may be the right option.
The engine here is liquid-cooled and 2-stroke, with the cylinder having a 39mm bore size and 41.7mm stroke length. Nothing special, even though the 2-stroke engine has great power and quick acceleration. In terms of engine power, this dirt bike is on par with the KTM bikes.
The brakes are also pretty similar; you are getting high-performance hydraulic disc brakes both in the rear and front. The KTM bikes again have this. The same applies to the transmission; you are again getting a single-speed auto gearbox, which is great for kids.
With the suspension, things become quite different. The front suspension is fully adjustable and has around 8.27 inches of travel, a little more than the KTM 50SX. If this didn’t seem impressive enough, then what about the fully adjustable rear suspension with 9.76 inches of travel? A little reminder, the KTM 50SX had a “mere” 7.3 inches of rear travel suspension!
And when you combine the excellent suspension travel with about 9.65 inches of ground clearance, you are getting a dirt bike that’s an absolute monster off the road!
This thing, of course, costs accordingly. But if performance is key for your kid, then maybe this is the very best 50cc dirt bike option for their needs!
- Pros:
- Fully adjustable suspension with plenty of travel.
- Single-speed auto transmission.
- 9.6 inches of ground clearance.
- Hydraulic disk brakes.
- Weighs just 91 pounds.
- Cons:
- Very expensive.
- The 2-stroke engine is relatively difficult to control.
Cobra CX50 JR
The Cobra CX50 JR dirt bike is a slightly cheaper alternative to the CX50 FWE, and it’s got slightly worse off-road performance. With that said, if you think that the CX50 FWE is overkill for your kid, then maybe the JR variant will be better.
The engine and transmission in this dirt bike appear to be identical to what CX50 FWE has, so there’s not much to cover here. The same goes for the hydraulic disc brakes. What differs between the two Cobra dirt bikes is their suspension, clearance, weight, and size.
CX50 JR has a slightly shallower clearance than the FWE dirt bike, 8.5 inches, around 1.1 inches less than in the CX50 FWE. Then, you also have rear and front suspension systems with less travel, around 6.7 inches for both. This is excellent, but it’s nowhere near what the CX50 FWE dirt bike has.
In terms of weight, the CX50 JR is at the top; it weighs 81 pounds, 10 pounds less than the FWE. Not that 91 pounds is too heavy, but if you care about weight, then 81 will be better than 91.
Finally, this dirt bike is a little smaller than the FWE; it has a seat height of 607 mm (680 in the FWE) and a wheelbase of 908 mm (990 in the FWE). Due to this, the CX50 JR may be a better option for shorter and/or younger kids.
- Pros:
- 8.5 inches of ground clearance.
- Fully adjustable suspension with solid travel.
- Single-speed auto transmission.
- Hydraulic disc brakes.
- Weighs just 81 pounds.
- Cons:
- Expensive.
- Difficult to control a 2-stroke engine.
Cobra CX5E
The CX5E is the cheapest dirt bike offered by Cobra (though it’s not cheap by itself). It’s the smallest and least rugged Cobra dirt bike as well, but it still has plenty of things to offer.
Like it was with the FWE and JR, the engine, transmission, and hydraulic disc brakes are very similar here. What differs is the clearance, suspension, weight, and no combustion engine.
The CX5E is a cutting-edge electric minicycle designed for youthful riders who like the rush of competition and speed. Prepare yourself for incredible acceleration and snappy handling that will leave your rivals in the dust!
This innovative bike is among the fastest Minicycles available because of its potent electric engine, which produces astounding performance.
The CX5E glides through the air and on the track thanks to its streamlined and aerodynamic design, giving you lightning-fast precision when hitting jumps and curves.
You can tackle the roughest terrain with confidence and ease because of its sophisticated suspension system, and its lightweight, strong frame allows for optimal speed and maneuverability.
- Pros:
- 7 inches of ground clearance.
- Fully adjustable suspension with decent travel.
- Hydraulic disc brakes.
- Weighs just 79 pounds.
- Electric.
- Cons:
- Expensive.
SSR SX50-A
Finally, we have the SX50-A bike by SSR. This bike is marketed as a pit bike, which implies some differences from regular dirt bikes. However, a pit bike is still a dirt bike in the sense that it’s designed for off-road use.
With that said, some key features make this bike very different from the ones reviewed.
First off, this pit bike has a 2-stroke engine, which isn’t typical of pit bikes. Pit bikes usually come with 4-stroke engines. Due to its 2-stroke engine, this thing is going to have less smooth power delivery and will thus be a little more difficult to control.
The cylinder bore is 44.02 mm, and the stroke length is 33.2 mm, which implies a good amount of power and quicker revving towards high RPMs. Whether this is good for your kid or not is up to you to decide.
The ground clearance here is great – 8.5 inches is more than what most dirt bikes we reviewed have. With that said, it’s difficult to say how this thing will perform off the road since SSR doesn’t provide information on its suspension travel.
But overall, pit bikes tend to be worse than dirt bikes off the road, which probably applies to this model as well.
The weight of this pit bike is pretty remarkable – 48.5 pounds is lighter than anything we’ve reviewed. Not only that, but this bike is actually the cheapest bike on the list, which isn’t surprising – pit bikes tend to be much cheaper than dirt bikes.
At the same time, this bike isn’t that much smaller than other models – it has a seat height of around 660 mm and a wheelbase of around 914 mm, so it may be a better option for older or taller kids.
While a pit bike isn’t a true dirt bike, the SX50-A is small, lightweight, and not too powerful, which makes it a great option for children. It may lack some durability compared to more rugged kids’ dirt bikes, but it’s an excellent option for a growing rider, especially for the money.
- Pros:
- Very inexpensive.
- 8.5 inches of ground clearance.
- Weighs just 48.5 pounds.
- Cons:
- Relatively weak suspension performance.
- Abrupt power delivery.
- Not as rugged and durable as true dirt bikes.
Are 50cc Dirt Bikes Safe for Kids?
50cc bikes are safer for kids than more powerful dirt bikes since they don’t go as fast. Most 50cc dirt bikes will go between 25 and 40 mph, which isn’t terribly quick. But it’s quick enough – these
speeds are more than enough to cause serious injuries or even fatal incidents.
The safety of your kid is key when picking a 50cc dirt bike, so you should first make sure that you have the necessary safety gear for your child. Not only that, but you will need to educate your kid on bike safety. Then, you will need to supervise your kid since education may not be enough – children very often lack good judgment, and you may want to be there to enforce what you’ve taught to your kid.
Local laws and regulations will be important as well. Be sure to check local laws to see whether your kid needs to go through safety courses, whether you need to supervise them, and whether you need any licenses or permits for the bike.
Things to Consider in a Kids’ Dirt Bike
There are plenty of things you will need to consider in a kids’ dirt bike. Maybe even too many things. You’ve got technical stuff on one hand and some features related to safety on the other.
We want to focus our buyer’s guide more on comfort and safety rather than technical specs. Technical specs are important, but less important when you are dealing with a kids’ bike. We suggest that you get acquainted with the technical stuff on your own, while we will overview things that matter in terms of comfort and safety for your kid.
Engine type
Dirt bikes, be it adults’ or kids’ bikes, usually come with either 4 or 2-stroke engines. For a kid, we would suggest a bike with a 4-stroke engine.
4-stroke engines have smoother power delivery than 2-stroke engines. 2-stroke engines can be abrupt and are relatively difficult to tame, and one needs to have plenty of experience to get the most out of a dirt bike with a 2-stroke engine.
Now we have an Electric Engine, the Cobra CX5E. This innovative bike is among the fastest Minicycles available because of its potent electric engine, which produces astounding performance. The CX5E glides through the air and on the track thanks to its streamlined and aerodynamic design, giving you lightning-fast precision when hitting jumps and curves.
Transmission
When it comes to transmission, fewer gears are better. If you can, go for a dirt bike that has a single-speed transmission. While a multi-speed transmission will perhaps provide your kid with better control over the bike’s engine, it may be distracting and difficult for your child to master.
Seat height
The seat height is very important since you don’t want to get a bike that’s too tall or short for your kid.
Ideally, your kid should be able to touch the ground with both feet when starting the bike. If the bike is too tall for your kid, then the bike startup may be very inconvenient for them. And if your kid’s too tall, then the bike will be uncomfortable on the road.
It’s pretty difficult to give seat height approximations based on the height of a person alone. That’s because a shorter person with long legs can take a higher seat, while a tall person with short legs will need a lower seat.
To know for sure, your kid just needs to sit on a bike seat. Then, it will be pretty easy for you to determine whether it’s the right size for you.
If shopping online, choosing the proper seat height will be difficult. We suggest that you go to a local bike shop and try to determine what kind of seat height is right for your kid.
Throttle limiter
We highly recommend that you choose a dirt bike with a throttle limiter. A 50cc engine is among the smallest engines available on dirt bikes, but even a 50cc engine packs quite a punch.
An excellent way to control the power delivered by a 50cc engine is a throttle limiter. Kids’ dirt bikes usually come with throttle limiters, so you shouldn’t have problems finding a good model for your kid. With that said, you should carefully check each of the candidate bikes to find out whether it really has a throttle limiter.
Starter type
The type of starter system installed on a bike may matter to some people.
Dirt bikes usually have a kick starter to get the bike’s engine going. A Kickstarter isn’t too convoluted a piece of equipment, but it does require some force and skill. You may need to show your kid how to kick-start a bike properly, or you may kick-start the bike yourself for some time until your kid can do it on their own.
Instead of a bike with a Kickstarter, consider a dirt bike with an electric push-button starter. This isn’t a must-have feature, but it will make things more convenient.
Bike weight
It may be a good idea not to buy a too-heavy dirt bike for your kid. Not that dirt 
bikes are light per se, but the lighter your kid’s bike is, the better. This is not only a matter of convenience but also a matter of safety – for example, if your child gets trapped under the bike in an accident, it will be easier for them to get out from under the bike.
Price
Finally, consider the price of the dirt bike. For a kid, it would probably make more sense to go for a cheaper bike.
A cheap bike won’t be too over-the-top. Besides, your kid may grow out of a dirt bike pretty quickly, which could make an expensive bike a waste of money. Thus, unless your kid really needs the bells & whistles of the pricier dirt bikes, you should look for a cheaper model.
Final Thoughts
Dirt bikes are insanely fun to ride, but they can also be dangerous. A 50cc bike isn’t too powerful, but as mentioned earlier, it’s powerful enough for you to worry.
In conclusion, the 10 Best 50cc Dirt Bikes for Kids offer a variety of choices tailored to suit the adventurous spirit and skill level of young riders. This list includes options from a range of reputable manufacturers, each with its unique features and specifications.
KTM is known for its high-performance bikes, and its 50cc model is no exception, offering excellent speed control and handling. Yamaha’s offerings stand out for their durability and ease of use, making them perfect for beginners. Honda’s 50cc dirt bikes are renowned for their reliability and performance, serving as great stepping stones for kids transitioning into bigger bikes.
Suzuki delivers in terms of power and control, with their 50cc bikes being easy to ride while also being rugged enough to withstand rough terrains. The SSR series is designed with a unique blend of power, stability, and control, thus giving young riders a taste of professional off-road biking. Lastly, Cobra’s 50cc dirt bikes feature advanced suspension systems that help provide a smoother ride, even on rough terrains.
These 10 Best 50cc Dirt Bikes for Kids ensure that young riders have an exciting yet safe introduction to the world of off-road biking. Each model comes with its own set of benefits, but they all share a common goal – to provide an unforgettable biking experience for kids.
We suggest that you try to understand the technical stuff since it’s pretty important. It won’t be as important while your kid is still learning, but you would want to buy a dirt bike that’s good specs-wise.
