That's right, size really does matter when it comes to ATVs. They come in different sizes ranging from small electric quads for toddlers to large, fast ATVs.
Riding an ATV Fast Means Body English
While ATVs are considerably safer and less prone to roll-overs and flip-overs than their earlier predecessor the three wheeled Honda ATC, they can still be dangerous. They require more interaction than simply steering and throttle/brake inputs like you would normally use in a car.
You have to use your body to lean, similar to the way you use your body to turn, stop and start a motorcycle. For that reason the size of the ATV you ride should be completely dependent on your own physical size, age, strength and riding ability.
Sport ATVs are very light and they MUST be physically ridden. They have 2 wheel drive with a lower center of gravity and accelerate very quickly to speeds of over 70 miles per hour.
Obviously, these kinds of speeds in bumpy, un-predictable off-road conditions with a vehicle that offers almost no external protection in the case of a crash can be a serious combination and care be must be taken.
As with anything we do, especially motorsports related, it is very important to have proper training AND experience before attempting to ride one of these highly technical machines. Safety gear is an absolute must no matter what size ATV you'll be riding, including a helmet, goggles, boots, gloves, long sleeve shirt and long pants, and a chest protector.
Something worthy of mentioning is about the seats on sport quads. They're big. No matter what size sport ATV you're on, the seat will probably look like it's made for two people, but they're not. Sport ATVs are specifically designed for a single rider.
The only reason that seat is so big is because you have to move around on the quad to control it properly. Similar to riding a motorcycle, you lean into turns and scoot forwards and backwards depending on conditions and traction needs.