Auto Repair in Mint Hill – How to Read Tire Sizes
Have you ever tried reading your tire size? It looks like a jumbled mess, doesn‘t it? Even though there‘s a lot to take in, there‘s actually a pretty useful and interesting meaning behind each and every aspect. To better explain, lets take a look at an example:
P — stands for “passenger.” This is the Tire Type. Tires with “P” on them are designed to go on passenger vehicles — usually sedans and some light unibody SUV‘s. Another thing you may see is “LT” (Light Truck) — this is usually put on big trucks like F350‘s and some body–on–frame SUV‘s.
245 — is the Tire Width in millimeters from sidewall–to–sidewall. This area generally encompasses all of your tire‘s tread. In our example, 245 means 245 millimeters.
55 — is the Aspect Ratio. This measures the height of the sidewall from where it meets the rim to the tread. In our example, 55 means the sidewall height is 55% of the tire width (which we said earlier was 245 millimeters.)
R — is the Construction. In our example we have a “R” tire — a radial — which means the tire layers run radially across the tire. Almost all tires on the road use this structure, but you may also see crossply style tires.
16 — is the Wheel Diameter in inches. This is a simple measurement of the size of your wheel (sometimes called a rim) and in our example, the wheel size is 16 inches.