When it comes to top speed, there are mainly 3 factors that control it in mini-bikes and Go-karts, they are, Gear ratio, Tire size, and Engine’s rpm.
A stock Coleman CT200U has a 10:1 gear ratio, has a 19″ tire diameter, and 3600 as max RPM.
Therefore, theoretically, a stock Coleman CT200U has a top speed of 20mph, as can be seen by using our calculator down below.
But, of course, that is a theoretical value and in reality, there are a lot of slippages and the weight of the driver is also an important factor, practically the Top speed of stock Coleman CT200U is between 19-22 mph.
What engine is on the Coleman CT200U?
As you might know, the engine is what powers your mini-bike or any other gas-powered or electric-powered vehicle. Therefore it is a major factor in determining how fast your minibike can go.
The Coleman CT200U uses a Hisun 196cc motor that produces 6.5 hp power and is governor restricted to 3600 rpm out of the box.
It’s very similar to the $100 predator 212 engine but with slightly less displacement.
One major difference is the shaft size, the Hisun 196cc motors come with a 5/8″ shaft instead of a 3/4″ shaft that is common in other small engines.
Coleman CT200U top speed without Governor
Originally the CT200U comes with a throttle stop screw and a Governor that limits the minibike from exceeding 3600 rpm, or 20 mph.
The throttle limiter screw prevents you from going full throttle, the screw is welded so you will need to grind it with a Dremel.
Removing the throttle screw will get your Coleman CT200U to 25 mph (give or take 2-3 mph depending on your weight).
The Governor in the engine limits the engine to only make 3600 rpm at max. If you remove the governor, your engine can potentially make up to 4500-5000 rpm.
Removing the governor will make your Coleman CT200U’s top speed 30 mph (give or take 2-3 mph depending on your weight).
Governor can be disabled by either completely taking out the governor gear or using a zip tie to zip the spring that brings the governor into action.
You can easily find step-by-step tutorials for both methods on Youtube. It’s not really hard to do and costs you nothing.
Note: Engine parts such as Flywheel and Billet rod can fail at high RPM which can be dangerous, it’s recommended to upgrade to a billet rod and a billet flywheel once you remove the governor.
About Coleman CT200U
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