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Tire Tech Information - Calculating Approximate Tire Dimensions

…second pair of numbers (225/ 45R17) is the tire's aspect ratio or profile. This percentage represents the ratio of sidewall's section height to the tire's section width. The section height can be calculated by multiplying the section width by the aspect ratio percentage. The answer will be the height of one…

Related Products: Rolling Diameter Calculator | Changing Aspect Ratio | Revolutions Per Mile Calculator

More on Plus Sizing

…shorter and wider. While the shape changes, the size (area) of the contact patch remains relatively unchanged. * High aspect ratio = tall and narrow contact patch* Short aspect ratio = chort and wide contact patchWhat does this mean? The tread blocks with a taller, narrow profile have more deflection…

Related Products: Changing Aspect Ratio | Tall And Narrow | Tire Sizes Aspect Ratio

Tire Tech Information - Tire Size Conversion Chart

…load capacity, followed by an "R" if radial ply construction, the tire's aspect ratio and wheel diameter. So while G78-15, G70-15 and G60-15 sized tires are all rated to carry the same maximum load, their different aspect ratios resulted in tires with the overall diameters indicated below. Tire Size Overall…

Related Products: Tire Psi Chart | Size Calculator | Tire Size Comparison Chart

Tire Size Conversion Chart

…N * When replacing Alpha Numeric tires with Euro-metric or P-metric tires, look for the Euro-metric or P-metric size listed in the equivalent aspect ratio. For example, when replacing a FR78-14, you would look up the appropriate 75-series size, the 205/75R14. If replacing a FR70-14, you would look…

Related Products: Tire Size Interchange | Equivalent Tire Sizes | Tire Conversion Chart

Plus 1 Plus 2 Equals What?

…section width (first number in the size) while decreasing the aspect ratio (second number in the size). The wheel size stays the same so you will not have to purchase new wheels. Plus 1 - Increase the section width while decreasing aspect ratio but also increase the wheel size by 1 inch. The result is approximately…

Related Products: Plus Zero Sizing | Changing Tire Sizes | Plus 2

Review of: Goodyear Eagle GS-D

…before these tires run out of stick-um. I had to drop to 45 ratio tires to get tires to fit this time. Turned out to be OK%21 If I can%27t get the same tire next time, I would rather buy bigger rims and go one size up and 35 or 40 aspect ratio than switch tires%21%21%21%21 The rears usually last only…

Related Products: Best Autocross Tires

Tire Tech Information - Tire Specs Explained: Measuring Rim Width

…/50R15 7.0" P225/45R17 7.5" P225/40R18 8.0" The assigned measuring rim width changes with the tire size's section width and with the tire size's aspect ratio. As tire section width increases, the measuring rim width increases proportionately in 1/2" increments. Therefore, relatively narrow wheel widths…

Related Products: Rim Width Tire Size | Rim Size Chart | Rim Width Vs Tire Width

Tire Tech Information - Contact Patch

…those big Reebok's do. The shape of a tire's contact patch or "footprint" greatly influences its performance and is dependent on its profile or "aspect ratio". Low profile tires (most performance tires) have a short and wide contact patch that is effective in converting the driver's input into very responsive…

Related Products: Low Profile Tire Pressure | Speed Conversion | Changing Aspect Ratio
How Do I Know What Kind of Tire I Need?

How Do I Know What Kind of Tire I Need?

…a look at tires in the Standard Touring All-Season category. Tires in this category are typically available in lower speed ratings and higher aspect ratio sizes. They often place more of an emphasis on ride comfort and treadwear than Grand Touring tires. Passenger All-Season - While the steering response…

Related Products: Best Low Profile Tire | Low Profile All Season | Quiet Low Profile
Installation is Even Easier!

Installation is Even Easier!

…that the "Series" of the tire is the second part of the tire's size. For example, a 205/65R15 is a 65 Series tire. More information on sidewall aspect ratio can be found by reading "Tire Size Guide." * 60 Series and up $12.00 * 50-55 Series $12.00 * 40-45 Series $15.00 * 35 Series and lower $19.00 We…

Related Products: Installation Price | Sears | 205 65r15

Winter Wheels & Winter Tires for Your Vehicle Made Easy

…suggest an affordable wheel and tire package for winter, downsizing the wheel and tire whenever possible. By downsizing, you get a higher sidewall aspect ratio along with a narrower tread width that helps the tire cut the snow. But what do you do about your tire pressure monitoring systems (TPMS)? Most…

Related Products: Downsizing | Downsize Winter | Tire Sizes Aspect Ratio

Tire Tech Information - Load Range / Ply Rating Identification

…will be branded light load, and identified by an LL in their descriptions, as in P285/35R-19 LL. Note: Only P-metric sized tires with 45-series aspect ratios or lower may be manufactured in a light load configuration. Light load tires are designed to carry less weight than standard load tires and have…

Related Products: Trailer Tire Load Range Chart | Trailer Tires Load Range E | Load Range C
Related Categories: Changing Aspect Ratio | Equivalent Tire Sizes | Changing Tire Sizes | Rolling Diameter Calculator | Size Calculator | Diameter Chart | Tire Psi Chart | Tire Size Interchange | Tire Size Substitution | Rim Size Chart
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