# What do the numbers mean on a bicycle tire?

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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. … For example, a 26 x 1.75 size means the tire diameter is 26 inches and the tire width is 1.75 inches.

## What is the difference between 26 inch and 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. … It seems that some people believe that larger wheels mean faster wheels. Some people think that because 700c wheels are the ‘standard’ for road bikes, they must be better.

## What does the 2.1 mean on a bike tire?

A wider tire like a 2.1 inch will have a slightly larger contact patch than a 1.95-inch tire for two reasons; first, the 2.1-inch tire is wider, exposing more of the tread to the ground. Second, the 2.1-inch tire has more volume, which lets it run at lower tire pressures without risking a flat.

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## What does 700x35c mean on a bike tire?

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 is a 38c 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.

## Are 28 inch wheels the same as 700c?

28”/700C/29er

The wheel sizes 28”, 700C and 29er or 29” all refer to the same rim size: ETRTO 622. 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.

## 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).

## Can you put 2.0 tires on 1.75 Rims?

2.0 is the diameter of the tyre/tube in inches. So a 1.75″ tyre will be smaller and slimmer, and probably a little faster. 26″ is the diameter of the whole rim, but check the tyre for its ISO number to be sure. Its likely to be a ISO-559 size.

## Can you put 2.125 tires on 1.75 Rims?

Will A 2.125 Tire Fit On A 1.75 Rim? Though this compatibility is dependent on your bike frame, all things being equal, a 2.125 tire will fit in nicely with a 1 75 rim.

## Will a 26×2 125 tire fit a 26×1 95?

Q: can this fit a 26×2. 125? Yes, it is the correct size if you choose 26×1. 95-2.125.

## IS 700c the same as 29?

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. 650B (ISO size 584) is used for some randonneur bikes and other specialized bikes.

## 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.

## How wide is 35C?

35c means that the tire is roughly 35mm wide.

## What does the C mean in bike tire size?

E.g., 700x25c. The letter “C” in a tire’s parameters refers to an archaic French standard for bike tire sizing which relied on letters ranging from “A” to “D” to indicate a tire’s width and subsequently the circumference of the corresponding rim.

## What is a 700c tire in inches?

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.

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## 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.