One good thing to understand when shopping for quad tires is, knowing how to read ATV tire size. To point out, it’s not like reading the size on your car tires.
(Imagine the “8” is a “10”)
In most cases you’ll see the numbers for the tire size displayed like this, 25×10-12, and sometimes you’ll see it like this, 25x10x12. Either way, it’s the same thing.
The first number, in this example “25” represents the height of the tire when it’s mounted on a rim and inflated to the manufactures suggested air pressure.
The second number, in this example “10” represents the overall width of the tire when it’s mounted on a wheel and inflated to the manufactures suggested air pressure.
The last number, in this example, “12” indicates the diameter of the wheel the tire is to be mounted on. So in this case this tire goes on a 12 inch wheel/rim and it can no way shape or form be mounted on any other wheel sizes.
So when you’re looking at tires and you’re thinking about maybe getting a taller tire or a wider tire by referencing your current tire size and measuring clearances on your ATV you’ll be able to determine what sizes are possible to fit your application.
Just remember, if you have a 12 inch wheel, you have to get tires that have a “12” at the end of the tire size.
As an example, you’re stock setup has 25×10-12 on the back and you want add a little more ground clearance and you’ve made sure you have the room to accommodate a taller tire, one of your options would be a 27×10-12. With this tire size you would add 2 inches of ground clearance.
As a reminder, most of the, like 99% of the time, you’ll need 2 different sizes when buying all four ATV tires. One size will be for the front and the other for the back. In general the front tires are always more narrower. For sport quads the front tires are always taller then the back tire and for utility quads, most of the time the front and back tires are the same height, just different widths.