Why are there four motos?
There are two classes, each with two motos. The two classes of racing are AMA Motocross Lites (250cc four-stroke motorcycles or 125cc two-stroke motorcycles) and the premier AMA Motocross class (450cc four-strokes or 250cc two-strokes). Changes in the last five or six years have seen all of the professional racers switch from two-stroke bikes to four-stroke “thumpers,” though two-strokes are still allowed in both classes. Why are there two motos? Well, back when motocross was still very young, the equipment was not nearly as reliable as it is today. Organizers wanted to make sure the fans got to see their favorite riders as much as possible, and having two motos (and even three, at one point) gave them a second opportunity, should something go wrong with the bike.
There are two classes, each with two motos. The two classes of racing are AMA Motocross 250 class (250cc four-stroke motorcycles or 125cc two-stroke motorcycles) and the premier AMA 450 class (450cc four-strokes or 250cc two-strokes). Changes in the last five or six years have seen all of the professional racers switch from two-stroke bikes to four-stroke “thumpers,” though two-strokes are still allowed in both classes. Why are there two motos? Well, back when motocross was still very young, the equipment was not nearly as reliable as it is today. Organizers wanted to make sure the fans got to see their favorite riders as much as possible, and having two motos (and even three, at one point) gave them a second opportunity, should something go wrong with the bike.
