What Is The Top Speed Of A 50cc Go-Kart? 5 Kids Karts Reviewed

When I first thought about buying my child a go-kart, I had a few worries, mostly related to speed and safety. Here, I’ll share with you everything you need to know about the speed and safety of 50cc go-karts so you can make a sound decision about purchasing a kart for your child as well.

Most 50cc go-karts from the major manufacturers will reach a top speed of around 30 mph (48 kph), although some may reach speeds of 50 mph (80 kph). The exact speeds reached will be determined by a range of factors, such as the weight of the driver and the type of tires on the kart.

Below, I’ll share everything you need to know to make kart safety simple. You will also learn how to make adjustments to the engine’s governor to limit speed. We will also go over a list of popular 50cc go-karts and their max speeds, and I’ll even share which one I would buy for my own child.

Kart driver sitting in their red, white and blue racing go-kart with fencing in the background, What Is The Top Speed Of A 50cc Go-Kart?

5 Examples Of 50cc Go-Kart Top Speeds

ChassisEngineTop Speed
Coyote Kryptonite Cadet Kart49cc LO20634 mph / 55 kph
Top Kart Kid Kart49cc Comer C5132 mph / 51 kph
Tony Kart Micro Kid Kart49cc Comer C5132 mph / 51 kph
Margay Racing Wildcat Kid Kart49cc Honda GXH5030 mph / 48 kph
Praga Baby Kid Kart49cc Honda GX3530 mph / 48 kph

How Fast Should My Child Go In A Go-Kart? What Is An Acceptable Speed?

Acceptable go-kart speeds for your child depend on your comfort level and your child’s abilities. This will be for you to determine if you want them to reach 30+ mph (48+ kph) or not. In the beginning, both you and your child may feel more comfortable starting out slow and gradually going faster.

50cc go-karts are powered by a small 2-stroke engine, similar to one you’d find on a chainsaw. An important thing to know when shopping for a 50cc kart is that these are essentially sold and listed as 49cc. This is primarily because most of the 50cc engines are actually “49-point-something-cc”.

Designed For Safety

These motors provide a decent level of power and speed but not so much that it will be a safety issue. Again, these karts are made with children in mind. They are designed with smaller engines to get kids involved in learning the basics of go-karts. Though these karts are capable of reaching 30+ mph (48+ kph), remember that they are meant to go that fast and it’s completely safe to do so!

Because of that, you and your child should feel positive while operating a kart. You can teach and practice safe driving habits. You and your child should understand the proper use of the components, such as the throttle and brakes. And always remember to follow common safety practices and wear appropriate safety equipment.

Is Go-Karting Safe For Kids?

Go-karting is absolutely safe for kids, but to improve safety, follow these tips:

  • Always wear a properly fitting helmet and keep long hair pulled up
  • Always wear gloves
  • Wear proper boots that will not untie or fall off
  • Check your equipment before riding
  • Learn and practice safe handling habits

Adjusting The Governor To Limit Your Kart’s Speed

As far as speed and limiting it goes, you can adjust the governor on the engine itself. The governor arm can be adjusted by taking the kart or engine to a small engine shop. By doing this, you will know it is done properly and they will be able to take care of any concerns you may have. If you are familiar with small engines and have the mechanical knowledge, you can also just do it yourself.

How To Remove Your Go-Kart’s Governor

To do this, you must first locate the governor on your specific engine and adjust the governor arm. They are primarily located in the same place on most small engines.

The crankcase cover will need to be removed to access the governor arm. These arms are usually held in place by a small nut, bolt, or screw. You will need to loosen this using the proper tool. Once it’s loosened, you can adjust the arm clockwise until it maxes out on the carburetor.

Finally, be sure to tighten the nut or screw back down. This may be easier done with two people so the arm does not move while you are tightening it. When you have the throttle maxed out, this arm should have tension to it.

The arm should not move much unless you apply pressure to make it move. And again, you can always take it to a small engine shop and they will be able to adjust it for you as well.


• 50cc go-karts generally have a max speed of around 35 mph (56 kph)

• They’re designed to be safe for kids to use

• You can limit the speed of the kart through the engine governor

What 50cc Go-Kart Should You Buy Your Kid?

Which kart you decide to buy is ultimately up to you. They have different chassis and body styles to choose from. Some include plastic bumpers that even come in different colors.

When purchasing, you should also consider where the kart will be driven. Some karts are specifically designed for track use only, while others can be used off track and on the street. This can be determined by the type of tires on the kart, although the description should also specify this if you are unsure.

You will also find that some karts even come equipped with a safety flag for extra precautions when it comes to seeing the driver. If you are familiar with small engines and the mechanics of karts already, you can even build your own. There are many different chassis to choose from and you will need to put the engine in yourself.

The most popular 50cc engines include brands such as Comer, Briggs & Stratton, and Honda. By building your own kart, you can customize everything to your specifications and get the speed and safety you want.

What Kart Would I Purchase?

My personal choice for purchasing a 50cc go-kart would be the Tony Kart Micro Kart for a multitude of reasons, chief among them being the reliable and widely-available Comer C51 engine that powers it. When compared to some other 50cc engines, Comers are far more common and as such, fixing them and otherwise tuning them to the specifics of your child is a much easier process.

Between that and the long history of kart development at Tony Kart, this choice is certainly something I’d make with ease! Of course, it would depend on what chassis are available within any given area, and you can easily switch out the Comer C51 for others depending on which manufacturers are most prominent where you’re at in the world.

But from my personal experience working with C51s, I’d feel the most comfortable maintaining that type of engine, especially since 2-stroke varieties are less complex to deal with.

Final Thoughts

The top speed for the majority of 50cc go-karts is approximately 30 mph (48 kph). Go-karting is completely safe for kids, with there being a wide array of karts available for you to purchase – or build – for your child. You can even adjust the governor on many go-karts to limit the speed.