How Do You Tell if a RC Car Is Fast?

When it comes to buying a remote control (RC) car, there is nothing more exciting than finding one that is fast. But how can you tell if a RC car is fast? This article will explain the factors to consider when determining the speed of an RC car.

Speed Rating

One of the most obvious signs of a fast RC car is its speed rating. This rating will tell you how quickly the car can travel, usually in miles per hour or kilometers per hour.

Generally, the higher the speed rating, the faster the car can go. However, it’s important to note that speed ratings may not always be accurate and can be exaggerated.

Engine/Motor Type

The type of engine or motor used in an RC car also plays a big role in determining its speed. Brushed motors are less powerful than brushless motors and provide slower acceleration, while brushless motors are more powerful and offer faster acceleration and top speeds. Additionally, certain types of fuel such as nitro or electric fuel can affect an RC car’s performance and determine its maximum speed limit.

Gears & Gear Ratios

Gears play an important role in determining how fast an RC car can go as they help transfer power from the motor to the wheels. Different types of gears have different gear ratios which affect acceleration and top speed. Generally speaking, higher gear ratios provide faster acceleration while lower gear ratios provide better top speed.


The weight of an RC car is another factor that affects its performance and top speed potential. Heavier cars tend to accelerate slower but have better traction which makes them able to reach higher speeds eventually; on the other hand, lighter cars may accelerate faster but struggle with traction at high speeds due to lack of weight pushing down on their tires for grip.


To determine how fast an RC Car is you must consider several factors including its speed rating, engine/motor type, gears & gear ratios and weight. All these factors combined will give you a good indication of how fast your RC Car will be able to go.

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Karen Watkins