# Best answer: What does the C mean in bike tire size?

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Typical road bike tire: 700 x 32c indicates a tire that has an outer diameter of 700mm and a width of 32mm. (Note that the “c” does not stand for centimeters; it’s a holdover from an old French system that designated tire sizes using the letters a, b and c.)

## What does 700×23 25c mean?

Some manufacturers (e.g., Specialize) offer two width measurements (e.g., 700×23/25c) to indicate that the carcass is 25 mm wide, but that the tread patch is equivalent to a 23 mm tire. … A tire profile that is perfectly found tire will be the same in both.

## What does 700x32c mean?

700x32c means a 700c tyre which is 32mm wide. … So a tube that says 700 X 28/32C will fit tires that range in size from 700 X 28C up to 700 X 32C. 700 is in reference to the diameter of the wheel while the other number is in reference to the width of the tire. The other aspect of getting a tube is the valve.

## What is a 25c tire?

Basically, it was a measure of the width of an inflated bike tire. … Sizes 23c and 25c indicate road/racing tires; 28c to 32c indicate tires that will work on pavement, but also gravel; above 32c, the tires are good for off-road, mountain bikes, &c.

## What is 700x 38c?

In basic terms, a 700x38c tire is approximately 27 1/2 inches by 1 1/2 inches (or 1.50 inches). Easy, yeah? Sadly, things aren’t always quite as simple when it comes to bicycle tires.

## Is 700×23 the same as 700x23c?

700×23 and 700x23C and 700C x 23 and 700x23c and 700x23c all mean the same size of tire. They are indeed the same size of tire. For some reason, the “c” gets shuffled about, sometimes being put after the 700, sometimes being put after the tire width (in this case, 23mm), etc.

## What’s the difference between 700×23 and 700×25?

Subject: RE: Difference between 700×23 and 700×25 tires? There is very little difference between most 700×23 and 700×25 tires. Some manfacturers tires tend to run a little small in some models (my latest continentai 23’s are actually more like 20’s) If your bike came with 23’s you can run 25’s with no worries.

## Is 700 the same as 28?

700 mm is roughly 27.5 inches, so if you mounted a reasonable tire on it, you’d get around 28 inches (hence the name 28″). For mountain bikes, you’d get a bigger tire giving an outside diameter of 29″+. … If its being used on a road bike or hybrid, 700c is also a good way to refer to it.

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

700x38c is the size of your bicycle tire. 700 is the nominal diameter of the tire in millimeters. 38 is the width of the tire (as seen if you were looking at your bike from the front/back). C refers to the old French system of classifying wheels according to their Bead Seat Diameter.

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## What does 700cx28 mean?

700 refers to the theoretical rolling diameter of the tire in millimeters. 28 refers to the theoretical mounted and inflated width of the tire in millimeters. c is supposed to be a measure of rim width as in a, b, c, d like in shoes, but in real life it has a stronger relationship to the rim diameter.

## Is 27.5 same as 700C?

Just as a 700C wheel is the same diameter as a 29” (29er) wheel, 650B shares the exact same rim diameter as 27.5”. … 27.5”/650B rims have a bead seat diameter of 584mm, and 29”/700C rims have a bead seat diameter of 622mm.

## What size bike tire is 700x35c?

In simple terms, a 700x35c tire is roughly 27 1/2 inches by 1 3/8 inches (or 1.38 inches).

## Is a 29 inch wheel the same as 700C?

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. 29″ tires are popular with mountain bikers; search for 29″ MTB.

## What are bike tire sizes?

Generally, bike tire sizes are indicated with two numbers that correspond roughly to the outside diameter of the tire and the width of the tire. These would usually be measured in inches (26″, 27″, etc.) or millimeters (650, 700, etc.).

## What is the difference between 700 and 700c tires?

700 is the outer diameter in mm. 38 is the sectional width and “C” is the French tire size which designates an inner diameter of 622mm. 700C is used as a generic term for this size tire, but if the width is given then it should be placed at the end.

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## What size is 700x40c?

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.