If you’re new to the hobby of radio-controlled cars and trucks, there are many differences that can be spotted on these machines, when compared to their toy-grade counterparts. While most of those differences are easy to spot, there are others that lie just beneath the surface.
The tires that a hobby-grade vehicle rides on are typically made from a softer compound than what’s found on a radio-controlled toy. Because of this, a foam insert is used to help the tire retain its shape and maintain performance and handling while being driven. All vehicles, on-road cars, buggies, short course trucks, and scale trail rigs have foam inserts inside of their tires.
Getting to Know Foam
RC Car Action has a great guide for better understanding the various aspects of foam inserts, what the differences are between open-cell and closed-cell foams, and what type of insert is best suited for what type of vehicle. It’s a great piece of information to have, no matter what stage of the hobby you’re in.