Apply to connection—I apply our solar system to motocross by all the different types of classes that there are at the track. So you have many kinds of dirt bikes, like Honda, and Yamaha, and also different size motors that determine the class. They all go around the track at different speeds, especially depending on the rider. Therefore, when you are on a motocross track, there are obstacles, and depending on whether they jump them all, will determine how fast they go around.
Image with caption - This is a picture of multiple dirt bikes that make motocross motocross. 