# What size tube do I need for my bike tire?

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## What size tube does my bike tire need?

The size is almost always written somewhere on the sidewall of the tyre. Inner tubes typically state a wheel diameter and width range for which they will work, e.g. 26 x 1.95-2.125″, indicating that the tube is intended to fit a 26 inch tyre with a width of between 1.95 inches and 2.125 inches.

## Is a bike tube the same size as the tire?

While your diameter measurement needs to be exact, your width measurement does not. Because inner tubes stretch, they typically come in a range of widths. … Some tires have dimensions in millimeters, but the basic measurement structure is still the same: Diameter x Width.

## 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 size inner tube do I need for 700x40c?

Since the size of an inner tube can vary depending on the amount of air that you fill it up with, they are sold by a range of sizes that they will definitely fit. So if you have bike tires that are 700 x 40C, you need to get inner tubes which come with a size range of 700 x 35 c to 70 x 43c.

## What does 700x28c mean?

700x28c simply means the size of your bicycle tire, according to what’s known as the ‘French system’. “700” is the overall diameter of the bike tire, measured in millimeters. … The “c” is part of the old French system that classified widths of tires from “a” (being the narrowest) to “d” (which was the widest).

## Will a 1.75 tube fit a 1.95 tire?

a 1.5″ tube will work in 1.95″ tires, but likely won’t last as long. Larger tires will cause more issues (don’t try 1.5″ tubes in 2.3″ tires if you want the tubes to last a ride).

## Can I use a bigger tube in my bike tire?

Bike inner tubes will accommodate a limited range of sizes. Larger tubes may be more susceptible to getting pinched between the tire and rim. It’s always best to try and match as close as you can, but there is some flexibility. Having a slightly smaller or larger tube will be quite fine.

## Can I use a smaller tube in my bike tire?

Yes, you can, as long as you don’t go more than one size smaller, or the differential is not too extreme. A 1.25 in a 1.5 is fine. A 1.25 in a 2.25 is likely to have issues with flats. Your LBS will have tubes.

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## Will a 27.5 tube fit a 29 wheel?

They will both fit into 29, but at a stretch, literally. I’d not use it as a permanent fix, but as an emergency get you home with no alternatives, you’d probably be ok.

## Will a 700c tube fit a 28?

Many 700c tubes come to fit tyres up to 25mm, which are often fitted to road bikes. But you can also find wider tubes to fit the 28mm tyres that are increasingly fitted to road bikes.

## How much does a bicycle tube cost?

The average price of a bike tube costs between \$5 and \$9. You can find tubes for as little as \$2 and up and even some models beyond the \$35. Specialized tubes and puncture-resistant tubes will cost more than traditional bike tubes.

## What is the standard mountain bike tire size?

Mountain bike tires come in three diameter options – 26, 27.5, and 29 inches. The 26-inch variety has been the industry standard for a long time, but many modern adult bikes now use 27.5 or 29-inch tires.

## 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.