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Tire Size Explanation. You are one step away from getting a detailed, color-coded explanation of a specific tire code. Just click on a size below to get a break down of what it means. You will also get a list of vehicles that are compatible with the size you choose. Our tire code explanations are easy to understand.
Is the width of the tire measured in millimeters from sidewall to sidewall. The first three-digit number in the tire size refers to the tire width. For instance, in a size P215/65 R15 tire, the width is 215 millimeters.
P = When a tire size begins with a "P," it signifies the tire is a "P-metric" size that was designed to be fitted on vehicles that are primarily used as passenger vehicles. This includes cars, minivans, sport utility vehicles and light duty pickup trucks (typically 1/4- and 1/2-ton load capacity).
Prior to 1964, tires were all made to a 90% aspect ratio. Tire size was specified as the tire width in inches and the diameter in inches - for example 6.50-15. From 1965 to the early 70's, tires were made to an 80% aspect ratio. Tire size was again specified by width in inches and diameter in inches.
These tire sizes are meant for trailers, including fifth wheels and other travel trailers, boat trailers and utility trailers. If there’s no letter before the first number, you have a metric tire most commonly referred to as European size.
Car Tire Sizes Explained: What The Numbers and Letters on Your Tires Mean By Autotropolis Contributors On the side of every tire is an alphanumeric system that describes the tire and its performance characteristics.
The first number or second letter in a tire size represents the nominal width. Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall.
The wheel size says a lot about the tire. All wheel sizes are the wheel diameter in inches. Whole number sizes indicate multi-piece wheels that require an inner tube. Most common tube wheel sizes are 20, 22 and 24 inches. Wheels with half-inch sizing are single piece for tubeless tires. Common sizes are 19.5, 22.5 and 24.5 inches.
Learn more about "How To Read A Tire Sidewall" and get the latest news about tires and more at Continental. OK ... TIRE SIZE. Example: P225/50/R17 98H. P identifies your tire as a Passenger Tire. The P stands for PMetric. If your tire size starts with LT rather than a P than it identifies the tire as a Light Truck tire.
Two-number Tire Sizing; Lawn tractor tires using the two-number system display numbers as 4.80-8, for example. This means the tire’s width is approximately 4.8 inches and the rim is 8 inches in diameter. Those are the only two numbers you need to find the right size replacement tire.