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. New Tire Buying Guide:Everything You Need to KnowJun 29, 2019 · Buying new tires can be a daunting experience. You face a bewildering array of brands, sizes and tire types to choose from, so it's easy to be confused. But don't worry:this guide will provide
Lets start off with the most common set of numbers you see on any type of tire. It will look like this P225/75R16, or something similar to that. All tires have their own numbers, and you may have a different size. P This letter means that this is a passenger tire. Tire Size Explained:What Do All the Numbers Mean? - The Apr 28, 2021 · When we use tire type P or P-Metric, it means that the tire is made according to certain standards of the United States (drafted by TRA) for passenger vehicles. If there are no letters at the beginning, it refers to the Euro-metric (drafted by ETRTO). The P Tire Sizes:What the Letters and Numbers Mean - AxleAddictJan 31, 2015 · Understanding Three Numbers in Tire Sizes The first number in a tire's size, say 225, is the width of the tire in millimeters. This is pretty straight forward except that in the days of buying tires sized by the inch (remember 31/10.50x15), the first number was the height rather than the width. Back then it was inches, not millimeters.
The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. Internal Construction P225/50R16, P225/50ZR16 The R in the P225/50R16 91S size identifies that the tire has a Radial construction in which the tire's body plies "radiate" out from the imaginary center of the wheel. Radial tires are by far the most What Do Size Markings On Bicycle Tires Mean?Aug 01, 2015 · Inch Marking (e.g. 28 x 1.40) states the approximate outer diameter (28 inches) and the tire width (1.40 inches). Inch marking such as 28 x 1 5/8 x 1 3/8 (approximate outer diameter x tire height x tire width) is also common. Inch sizes are not precise and lack accuracy. What Do The Numbers Mean at Tire RackUTQG Treadwear Numbers:What Do They Mean? tire's life and the tire's relationship to its assigned UTQG treadwear indicator. UTQG numbers are assigned to indicate a tires overall level of performance and tread hardness. These numbers beginning at 0 for race products and traveling north of 800 for some of the longest lasting
Mar 11, 2015 · Assuming were only talking road bikes, you really only need to know what two of the numbers mean. Take the photo to the right, for example, and youll see two lines:23-622 and 700x23c. Reading 23-622:The first number refers to the width of the tire once its fully inflated. So, in this case, the tire to the right is a 23mm tire.What Do the Numbers on My Tires Mean? Firestone Feb 25, 2018 · What do the numbers on this tire mean? Tire Width:215/65 R15 215 in this sequence refers to the tires width in millimeters. In other words, this tire is 215 millimeters wide, from sidewall to sidewall. Aspect Ratio:215/65 R15 65 in the sequence is the aspect ratio of the tire. The aspect ratio is a percentage, and it tells you the ratio of the tires height to its width.