Common Tire Sizes. Use the following chart to figure out the closest modern tire size to your car's original tires. Supports tire sizes in metric and inches. Most passenger car tires today are “metric” or “P-metric” (similar, with … 225/50R16 92S If there isn't a letter preceding the three-digit numeric portion of a tire size, it signifies the tire is a "Metric" size (also called "Euro-metric" because these sizes originated in Europe). top. For example P, LT, T, and ST. P. 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. Motorcycle Street Tire Size Conversion Chart Front Tires Rear Tires Metric Alpha Inch Metric Alpha Inch 80/90 MH90 2.50/2.75 110/90 MP85 4.50/4.75 It looks like your 5.20-13 tire has an overall diameter of 23.10 inches and a section width of 6 inches. The sizes in the above chart do not go as large as modern sizes (180/55 or 240/40) because new bikes are not made to use the Inch Format.. Tires Comparison Chart Agricultural Tire Metric Conversion Motorcycle tire guide 101 and faq revzilla metric to imperial tire conversion tyre size tire sizes motorcycle chart motorcycle conversion chart standard. Find all 33 inch diameter tires for every wheel size, including the metric and inch equivalent tire sizes available for each tire. Euro-metric sizes were developed over time based on load and dimensional… Use the table below to help you find radial tire size equivalents and metric … There are five tire diameter sizes that are in common use on modern standard adult bicycles. Tire sizes will often start with letters. P metric tire sizes: nominal width. Standard, Radial, and Metric Tractor Tire Sizes. I hope you can help with this one, because it has got me baffled. Closest. The Metric Tire Conversion Calculator converts metric tire sizes (ie 285/75R16) to standard tire sizes (ie 31x10.50R15) and standard tires back to metric. Metric & P-Metric Sizes. Two versions of numeric tire sizes were used as Original Equipment on vehicles between 1949 and 1970. with the new tires, your vehicle will actually be traveling at , which is than the original tires. The use of P-metric sizes began in the late 1970s and they are the most frequently used type of tire size today. Sometimes you will see a size written like 11.2×20 or you may see it like 11.2-20. Tire Height Calculator. …tire sizes created with the new load formula. What do these terms alphabetical, metric and std inch mean? The first number, in the illustration “185,” is the nominal width of the tire in millimeters, from sidewall to sidewall, when it is properly mounted on a wheel and inflated but not supporting a car. …and wheelwell dimensions) around either existing or new tire sizes.Metric or Euro-metric sized tires are the ones without the "P" at the beginning, (such as 185R14 or the 225/60R16 listed above). Vintage Tire Size Conversion Chart Use the following chart to figure out the closest modern tire size to your car's original tires. You should never go beyond 3% of the original tire, otherwise you run the risk of brake failure. Passenger tires that are designed based on the European Tyre and Rim Technical Organization’s (ETRTO) standard start without any letters. Tire Size Conversion Chart - Inches to Metric - by Wheel/Rim Diameter displays the inch tire size designations and for each inch tire designation shows the equivalent - exact calculated metric tire size.. Joseph 20. Dual Marked Size (transitioning ) Modern Size. Diameter Variance: The overall diameter variance of the new tire is , which is different than the original. Using metric dimensions to reflect a tire's width actually began in Europe in the late 60s. Goodyear has a large tire catalog complete with all-season tires, winter tires, sport performance tires, and more. 26" (ISO size 559) is the most commonly used size for modern mountain bikes and is also used by many hybrid bikes. The closest thing that we have is a 175/80-13 size tire which will have an overall diameter of 24.10 inches and a section width of 7 inches. Euro-metric sized tires do not have the P at the beginning of the size, 225/45-17 for example. Tire Construction Differences. They are explained in a section below. If you want to do a side-by-side comparison of two different tire sizes, simply enter your current tire size, followed by the new tire size. For Load Range "B" tires, ETRTO (ISO-Metric) standards specify the load index rating at an inflation pressure of 36 psi (250 kPa) (table below), while P-Metric standards measure the load capacity at an inflation pressure of 35 psi (240 kPa). It has thus been called the "Betamax of the tire industry. "LT" means Light Truck and "P" means Passenger tire. It is one of the first volume-produced low-profile tires. The load index on a passenger-car tire is a numerical code stipulating the maximum load (mass, or weight) each tire can carry. Using metric dimensions to reflect a tire's width began in Europe in the late 60s. Tire Size Chart - Metric - by Overall Tire Diameter displays the metric tire size designations with belonging tire measures, in metric and English units: OD - Overall Tire Diameter, SW - Section width, AR - Aspect Ratio, RD - Rim diameter, SH - Section height, CI - Tire circumference, RE - Revolutions per mile/km.. Vintage Tire Size Conversion Chart. My bike tires are currently in need of replacing and I read the numbers on it, … 35 is the tire diameter, or height, in inches. Enter any three of the numbers into this form to solve for the fourth. April 2018 at 19:09. So a 285/75R16 metric tire would calculate to an inch measurement tire of 32.82X11.22R16. Find your tire size within the chart below to see a selection that's right for you. 15 is the wheel size, in inches. Although technologically advanced, and reasonably successful, the tire's requirement for a non-standard rim ultimately condemned it to a relatively short commercial life. The Michelin TRX, (and the related TDX), is a radial tire introduced by the Michelin Group in 1975. Load index. Tractor Tire Size Conversion & Tube Chart ... or in the case of the newest metric radial sizes are still in development and yet to be produced. The calculator will provide the Sidewall Height, Section Width, Overall Diameter, Circumference, and Revolutions Per Mile, as well as an approximation of the difference in speedometer reading. Whats people lookup in this blog: Motorcycle Tire Size Chart Metric To Standard Remember, not all tire sizes are manufactured in both metric and inch sizes so learning how to read tire size can be a valuable tool for anyone in the market for new tires. 12.50 is the width of the tire, in inches. Enter Tire Size / R (Examples: 285/75R16 or 33x12.50R15) Convert. Tractor tire sizes can be written in many different ways, and can become very confusing to consumers. If there are no letters at the beginning, it refers to the Euro-metric (drafted by ETRTO). A handy guide to compare modern and antique tire sizes. For example a LT265/75R16 would be around 31.6 inches tall and 10 inches wide. Tire size calculator compares diameter, width, circumference and speedometer differences for any two tire sizes. P metric tire sizes: aspect ratio or profile Euro-metric sizes are dimensionally equivalent to P-metric sizes, but typically differ subtly in load-carrying capabilities. 27" (ISO size 630) is an older size that was used for road bikes, but since so many bikes were built with this size, it is still readily available. Calculate the overall diameter of metric and inch tire sizes and view the results with our tire visualizer. Find your tire size within the chart below to see a selection that's right for you. Radial Size. However,… Metric Radial Size . These sizes are known as hard-metric or Euro-metric size tires. Metric to Standard Tire Conversion Chart for 15 inch Wheels; Metric Standard; 215/75/15: 27.7"x 8.5" 225/70/15: 27.4"x 8.9" 225/75/15: 28.3"x 8.9" 235/75/15: 29.0"x 9.3" 245/75/15: 29.5"x 9.6" 255/75/15: 30.0"x 10.0" 265/75/15: 30.6"x 10.4" Tire Height in Inches The equivalent metric tire sizes presented in the right column of the chart are not the real tire sizes which you can buy in a store, these are only a hints. This chart has been developed to help you determine their equivalent Euro-metric and P-metric tire sizes. This formula is a quick way to get the tire diameter of those metric tires that are common on just about everything stock. Tire Size Conversion Chart. Size Prior to 1955. Compare the tire calculations with alternate tire sizes to find the right tire. Let’s break down the following tire size: 35x12.50R15 . Standard start without any letters in Europe in the late 60s letters at the beginning, it refers metric tire size chart Euro-metric! 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