Components of RC Cars and How They Work

From rally cars and race cars to monster trucks and rock crawlers, the world of Radio Controlled cars and toys has something for everyone to enjoy!

Almost every kid has had some sort of radio controlled toy at some point during their childhood! Every toy aisle in almost any store is usually lined with some sort of RC toy for kids. There is even an entire sub-culture of older kids and adults that compete in races and competitions of all sorts around the world!

The materials that are used for RC cars can vary greatly depending on the specific make of the car and its intended purpose. Some cars use simple plastic parts, while others use aluminum or harder metal alloys.

Of course, this is not a complete and comprehensive list of every component that makes up an RC car. Users can also modify their cars to their likings by changing things such as wheels, bodies, batteries and motors. Check the best rc cars now.

While radio controlled cars can be made up from many different construction materials, all remote-controlled cars are made up of 4 main parts.


The first part is the remote or transmitter. This is the controller that you hold in your hand and is used to remotely control the car or toy. The controller emits radio waves that are picked up and decoded by the receiver inside the car and allows the user to control basic operations such as speed, forward/reverse and steering.

Most RC transmitters for cars and toys operate at either the 27 MHz or 49 MHz frequencies. However, there are more advance radio-controlled planes that operate at higher frequencies.

RC transmitters require a power source. This is usually a small 9-volt battery that provides the power for the controls and the transmission of the radio signal.

Usually, transmitters for cars are simple and only have a few controls, but transmitters for planes and other advanced toys can have more controls that allow for better maneuverability and enhanced vehicle control.



The second component of a radio-controlled car is the Receiver which consists of an internal integrated circuit board and an antenna that receives signals from the transmitter. The antenna picks up the signal and sends it the circuit board to be decoded.

The circuit board contains the IC (integrated circuit) chip, amplifier and radio receiver. Once it has decoded the signal from the transmitter, it will adjust the motors accordingly and move the vehicle.


The Motors of an RC car allow the user to control operations such as the steering and speed of the vehicle.

All RC cars have motors that are used to turn the wheels and make the vehicle move either forward or backward and the speed which can both be adjusted by using the controls on the receiver.

There are also motors on RC cars that are used to control actuators that adjust the direction of the wheels allowing the user to steer the vehicle.

Power Source

Usually there are two different types of RC cars, electric or nitro powered. Most RC cars have electric motors that power both the wheels and steering, while only the more advanced RC cars and toys use gas or nitro powered motors. Electric cars use batteries, that can be either LiPo or Ni-Mh cells, while gas motors use Nitro as fuel.

There are some differences between the two types of RC cars. Cars with electric motors are often less expensive than their gas-powered counterparts and often require much less maintenance.  They do however only have limited run time as you must wait to charge the battery before using the car again. These types of cars are usually better for regular at home use.

Cars that run on gas have small engines in them that require fuel for them to work. These cars are often more expensive than electric cars and have a more complicated build which means more maintenance and more parts that can break.