After many years of working at Tire Rack, I find that it can sometimes be easy to take for granted some of the information and concepts that I use on a daily basis. One such concept called plus sizing may be well known in the tire industry, however many consumers aren't familiar with how it works.
What is plus sizing?
Plus sizing is the process of using larger diameter wheels mounted with lower profile tires.
Why plus size?
The purpose for using lower profile tires in plus sizing is twofold. First, doing so maintains the overall diameter of the Tire & Wheel Package. This is important to keep the accuracy of your odometer, speedometer and other vehicle instrumentations. Second, plus sizing with a lower profile tire often leads to more responsive handling and a better cosmetic appearance.
Notice that while the wheel diameter increases, the tire profile decreases. It's that simple.
You don't have to do the math on your own! Our website fitment specialists already know what size to use on your vehicle.