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A tire's section width (aka"cross section width") is the measurement of the tire's width from its inner sidewall to its outer sidewall (excluding any protective ribs, decorations or raised letters) at the widest point. This measurement is made without any load placed upon the tire. The rim the tire is mounted on affects this measurement. On a narrow rim the measurement would be "narrower" than if the same tire was mounted on a wide rim.
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 approved rim width range from 5.5" to 7.5" wide. The tire has a section width of 8.23" (209mm) when mounted on a 6.0" wide wheel. If that tire were mounted on a rim:
5.5" - 8.03" cross section width
7.5" - 8.93" cross section width
It's mainly important for (fender, frame)clearances, but a narrow rim should give a softer ride due to sidewall positioning, but less grip due to tread not less flat, more sidewall roll.
What else can I help you with?
Can 235 width tire sub for a 215 width tire?
It usually can
What is tire tread width?
The width of the contact patch of the tire on the road.
Is the tire width number lower the wider the tire?
No, the tire width number is higher for wider tires. Tire sizes are typically expressed in a standard format, such as "225/45R17," where the first number (225) represents the tire's width in millimeters. Therefore, a tire with a width of 225 mm is wider than one with a width of, say, 195 mm.
What limits the width of a tire?
The width of the road.
How can I determine the width of a tire?
To determine the width of a tire, you can look at the sidewall of the tire where the size information is usually printed. The width is typically indicated in millimeters and is the first number listed in the tire size. You can also measure the width of the tire using a ruler or tape measure if the size information is not visible.
What does the 225 in a tire size mean?
That is the tire profile or section width. The number is a metric figure standing for the width of the tire in millimeters.
265 on a tire what does it mean?
265 on a tire is the width of the tire in mm
Can you change the width of a tire?
No, you have to buy a wider tire.
How wide is a 295 tire?
A 295 tire typically has a section width of approximately 295 millimeters, which is about 11.6 inches. This measurement refers to the width of the tire when mounted and inflated. The actual width may vary slightly based on the tire's specific design and the rim width it is mounted on.
What is contract width?
"Contact" width is the tread with of a tire, not to be confused with sidewall width.
What is the width of a car tire?
Depends on the size tire and the aspect ration of that tire.
What information can I find in the bicycle tire width chart?
A bicycle tire width chart provides information on the different tire widths available for bicycles. This includes the measurements of the tire width in millimeters or inches, recommended tire widths for specific types of riding, and compatibility with different rim sizes. It can help you choose the right tire width for your bike based on your riding preferences and needs.
