Changing Tire Sizes

…necessarily the best "fit" for their individual taste. In most cases, changing the wheels and/or tires is a great way to personalize your vehicle quickly and safely. However, how do you know which sizes will fit your vehicle? Leave that to us! When a new model of car or truck is released,…

…75-series size, the 205/75R14. If replacing a FR70-14, you would look up the appropriate 70-series size, the 215/70R14. If replacing a FR60-14, you would look up the appropriate 60-series size, the 235/60R14. * Listing in chart does not imply complete interchangeability. * When changing tire sizes,…

…from customers who are curious about changing the wheel size on their vehicle. Here are answers to some of the most common questions about the difference in wheel sizes: Can I use a different wheel size than what came on my car? Yes. There are often sizes that'll work very well on a vehicle…

…of the tire due to differences in rim width. The industry rule of thumb is that for every 1/2" change in rim width, the tire's section width will correspondingly change by approximately 2/10". For example: a tire in the P205/60R15 size is measured on a 6.0" wide wheel and this size tire has an…

…of your vehicle. What is plus sizing? This involves changing the tire and/or wheel size from the original size. Plus 0 (Zero) - Increase the 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…

…the Tire Tech article, "Calculating Tire Dimensions." While at first a 3% diameter increase or reduction in tire diameter may sound very limiting, in most cases it allows approximately a 3/4" diameter change. Additionally, to help with the selection of substitute sizes, a system called "Plus Sizing"…

…listed on the tire): * 35 PSI for standard load tires with the "P" in front of the size (P-metric tires), e.g. P205/55R16 89T * 36 PSI for standard load tires without the "P" in front of the size (euro-metric tires), e.g. 205/55R16 91H * 41 PSI for extra load (XL) tires with the…

When creating a Plus Size fitment, the section width of the tire increases and the sidewall height decreases. The contact patch of the tire changes shape by becoming shorter and wider. While the shape changes, the size (area) of the contact patch remains relatively unchanged. * High aspect ratio =…

…trying to maintain the original tire diameter of staggered size fitments (similarities or differences) should use the tire manufacturer's specifications for the exact tire(s) they are considering. Actual Tire Section Width is Dependent on Wheel Width All tire sizes are assigned specific rim widths…

…swaps and changes by a previous owner (if you are not the first owner) mean that we cannot be 100% sure that the size the computer says is on your car is what you actually have installed on the car. It only takes a minute when you are entering or exiting the car to check what tire size is currently…

…6.5" Tire Size Measuring Rim Width P225/75R15 6.0" P225/70R15 6.5" P225/65R16 6.5" P225/60R15 6.5" P225/55R15 7.0" P225/50R15 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…

…from there. Plus Sizing supports the premise that it's important to maintain the same overall tire diameter whenever changing tires and wheel sizes to ensure sufficient ground clearance, appropriate driveline gearing and accurate speedometer readings. Large changes in overall tire diameter can alter…