
ATV & UTV Tire Basic Facts You Must Know
All Terrain - The Jack-of-all-trades-master-of-none tire of the ATV & Side By Side world. But for general trail riding in most of the country, this will be your weapon of choice. Designed to have decent ride and handling on most types of terrain. You can find tires within this category that are designed to favor one kind of terrain more than another. This usually mean mud. Look for a little more tread depth with a bit more space between lugs for better self-cleaning. These will give you better traction in the goo without wearing as fast as real mud tires.
Mud - If you ride in mud most of the time, there is no substitute for the real thing. ATV mud tires are all about going forward in sloppy surfaces. Unfortunately, that means they're not that great at doing anything else. Not too bad on other soft surfaces, you'll pay the price if you ride them in rocks or on hard pack terrain.
Sand - Also called paddle tires because that's pretty much what they look like. Except the fronts which are normally smooth or have a couple of simple ribs around them. Sand tires are an either or proposition - if you ride the dunes you must have them - but they're no good for anything but sand. In fact, they are so specialized, most folks just keep at least a pair of rear paddles mounted for when they get the urge to get sand in their shorts.
Racing - Racing tires are a whole specialty by themselves. Special tread designs and compounds are engineered for specific track conditions. If you're a racer, you are already well aware of those differences. If not - well it doesn't really matter. Most racing tires have a flat profile and are intended to run on medium to hard packed terrain (think motocross). If that's the kind of trails you ride, they could work on a sport ATV, but there are probably better choices in an all terrain type tire.
Pros -increased cornering traction and better acceleration and braking on some surfaces.
Cons - more steering effort and increased stress on suspension components. May cause tire rub on some ATVs.
Narrower than stock.Pros - Improved grip in soft terrain like mud and snow. Easier steering effort.
Cons - Less grip on most hard surfaces and more of a tendency to follow ruts.
Height or diameter of the tire:Smaller diameter - Lowers center of gravity and ground clearance. Similar effect to lower gearing (engine turns more rpm).
Reduces tippines but more likely to high center in rough terrain. Accelerates faster but has less top speed.
Larger diameter - Raises center of gravity and ground clearance. Effects of higher gearing. More likely to tip over but has increased ground clearance. Slower acceleration but higher top speed. Increased stress on drivetrain and brakes.
Aspect Ratio (Sidewall height): If you didn't already know, the price of an OHV tire can send you into sticker shock. With so many brands and types of tires to choose from, you may want to pick a price range before you start shopping for tires. Then limit yourself to considering tires in that price range.
Money doesn't matter - Lucky you! Your job is a lot easier. Just pick the tire that does the best job for your kind of ATV and your kind of riding.
If money is really no object then just buy several sets of specialty tires and you'll be ready for any kind of terrain.
How To Read Traditional Tire Sizing
- 25
- x8
- 12
- The Overall height of the tire when mounted and inflated to recommended air pressure, In this example the tire is 25 inches tall.
- The Overal width of the tire when mounted and inflated to recommended air pressure. In this example the tire is 8 inches wide.
- The diameter of the wheel that this tire will mount to. In this case it will be a 1 2-inch diameter Wheel.
How To Read Metric Tire Sizing
- 205/
- 80
- R
- 12
- The width of tire in millimeters when mounted and inflated to recommended air pressure. In this case it's 205 millimeters wide. Divide this by 25.4 to convert to inches. The result is 8.07. This runds off to 8 inches.
- The aspect ratio to the width of the tire when mounted and inflated to recommended air pressure. This specifies the sidewall height. In this case it's 80% of 205mm, which is 164. To convert the sidewall height to an overall diameter you must multiply that by 2 (wich results in 328mm), then divide by 25.4 to convert to inches (wich equals 12.913) and is then added to the wheel diameter (in this case, 12 inches). The result is 24.913 inches. This rounds off to 25 inches.
- This indicates that the tire uses radial construction
- The diameter of the wheel that this tire will mount to. In this case it will be a 12-inch diameter wheel.