# How do you read bike tire sizes?

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The first number is the diameter of your wheel. Sizes such as 26, 24, 20, 27.5, 29 and 700c are common tire diameters. The second number (after the X) is the width of your tire. The range for widths is usually between 1 and 3 inches.

## How do I know my bike tire size?

Check your tire’s sidewall—the numbers there indicate your tire size (roughly its outer diameter and its width, but not always in that order). Typical road bike tire: 700 x 32c indicates a tire that has an outer diameter of 700mm and a width of 32mm.

## What does 700x38c mean on a bike tire?

The 700 signifies the nominal or outer tire diameter while the 38 represents the tire width, both expressed in millimeters. So, a tire measuring 700x38c means its outer diameter is 700mm while its width is 38mm.

## What does 700x32c mean?

700 refers to the diameter of the wheel. Almost all road bikes have 700c wheels on them. 700x28c means a 700c tyre which is 28mm wide. 700x32c means a 700c tyre which is 32mm wide.

## Is a 28 inch tire the same as 700c?

28”/700C/29er

The tyres can differ, but the 28”, 700C and 29er are all the exact same rim diameter. The 700 markings will be followed by the width in mm, and the 28 or 29 markings will be followed by the width in inches. This is the most common wheel size, so look out for familiar markings (such as 28×1.

## What do numbers on bike tires mean?

The first number is the diameter of your wheel. Sizes such as 26, 24, 20, 27.5, 29 and 700c are common tire diameters. The second number (after the X) is the width of your tire. … For example, a 26 x 1.75 size means the tire diameter is 26 inches and the tire width is 1.75 inches.

## What does 700x35c mean?

So 700x35c means 700c diameter wheel with a 35mm wide tire. … “When the 29 inch MTB tire size was introduced a few years ago it had the same inner diameter of 622mm, known as 28” in Europe.

## What does 700x40c mean?

700x40c is the measurement of your bicycle tire and is sized according to what used to be known as the ‘French system’. ‘700’ is the nominal diameter of your tire, measured in millimeters. ‘x’ just means multiplied by. ’40’ is the second number and is the nominal tire width, also measure in millimeters.

## What size is a 38C TYRE?

Table of bicycle tires sizes

ETRTO English Size FRENCH SIZE
38-622 28 x 1-5/8 x 1½ 700 x 38C
37-622 28 x 1-5/8 x 1-3/8 700 x 35C
32-622 28 x 1-5/8 x 1-1/4 700 x 32C 700C Course
28-622 28 x 1-5/8 x 1-1/8 700 x 28C 700C
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## What size tire is 700x45c?

The second measurement type (700x45c) is a 45 mm wide tire that also fits on a rim with a 622 mm bead seat diameter, the 700c is an old French sizing nomenclature based on the final external diameter being 700 mm for width class of tire (e.g., a, b, c widths).

## What size bike tire is 700x32c?

At its most basic, a 700x32c tire is around 27 1/2 inches by 1 1/4 inches (or 1.26 inches).

## Is 622 the same as 700C?

The standard modern road bike wheel has an ISO diameter of 622 mm and is referred to as 700c (makes sense, right? /s). … While the diameter for both 29″ and 700c wheels is the same at 622mm, rims made for mountain bikes are generally wider to accommodate wider tires.

## Are 700 and 700C the same?

It doesn’t mean anything, really. It’s a historical relic. At one point in time, “700c” was a standard tire/rim size, where “c” indicated the bead seat diameter and “700” was the diameter, in millimeters, when the tire was installed and inflated.

## How many inches is a 700c bike tire?

All road and cyclocross bikes are built with 700c wheels, which are 29 inches. However, 700c wheels are designed to accommodate a thinner tire. Many come in widths ranging from 18 to 23 millimeters, with touring tires ranging from 25 to 28 millimeters.

## Is a 700c wheel the same as a 29er?

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.

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## What is a 700c bike wheel in inches?

The simple answer is that 700c equals 27.5 inches but, unfortunately, it’s not as simple as that.