# Often asked: How To Tell What Size Bike Tire You Have?

## How do I identify my tire size?

What does my tire size mean?

1. The two digit number after the slash mark is the aspect ratio which measures the tire’s cross-section to it’s width.
2. If the tire size is 255/60 R16, the 60 means that the height is 60% of the tire’s width. The bigger the aspect ratio, the bigger the tire’s sidewall will be.

## Is 26 inch bike good for what height?

Is 26 inch bike good for what height? Bikes that are 26 inches in size work well for children and adults who range from approximately five feet to six-feet tall. They can also be appropriate for some taller people, but the best way to find out if it’s a good fit is by testing ride one!

## Is 26 inch the same as 700C?

A 26 inch, or a 650c wheel is about 1 inch smaller (about 2 inches smaller with road slicks) in diameter than a 700c. Some people think that because 700c wheels are the ‘standard’ for road bikes, they must be better.

## What number is the height of a tire?

The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire’s width. The bigger the aspect ratio, the bigger the tire’s sidewall will be.

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## Can I use 225 tires instead of 215?

Yes, you can. But only if the rims on your car can accommodate tires that are 10-20 millimeters wider. Bear in mind that wider wheels require more fuel due to their increased rolling resistance. Again, wider tires are more costly than narrower ones because they need more rubber during construction.

## What do the 3 numbers mean on tire size?

B: TIRE WIDTH The three-digit number following the letter is the tire’s width (from side to side, looking at the tire head on) in millimeters. This may also be referred to as the section width. In this example, the aspect ratio is 65, meaning the sidewall is 65 percent as high as the tire is wide.

## What is a 700C tire in inches?

Many commuters have been rolling to work on 29-inch-wheels for years. All road and cyclocross bikes are built with 700c wheels, which are 29 inches. However, 700c wheels are designed to accommodate a thinner tire.

## Will a 700C tire fit a 26 inch rim?

It’s possible to find 26-inch tires that will fit on 700c rims, but a 700c tire will not fit on a 26- inch rim without stretching the sidewalls of the tire just enough to make it fit, especially if you use a tire with especially thick sidewalls.

## Is 29 and 700C the same?

29″ (ISO size 622) is actually the same rim diameter as 700C, although most 29″ tires will not fit 700C road rims because they’re too wide. 700C (ISO size 622) is the most commonly used size for modern road bikes.