Contents

- 1 How do I know my bike inner tube size?
- 2 How do I know my bike tire size?
- 3 How inner tubes are sized?
- 4 Does inner tube have to be exact size?
- 5 How much does a bike inner tube cost?
- 6 What are bike tire sizes?
- 7 Is 26 inch the same as 700c?
- 8 What size bike tire is 700x35c?
- 9 Can you change the tire size on a bike?
- 10 Can I use a smaller diameter inner tube?
- 11 What size inner tube do I need for 700x40c?
- 12 What are the numbers on an inner tube?
- 13 Will a 1.75 tube fit a 1.5 tire?
- 14 Can a 26 inch inner tube fit a 27.5 wheel?
- 15 What does the C mean on inner tubes?

## How do I know my bike inner tube size?

The best way to check what size inner tube you need is to look on the sidewall of your tyre. Tyre manufacturers print the size on the sidewalls, so look out for numbers such as ‘700x23c’ for a road bike, or ’26×1. 75′ which is for mountain bikes.

## 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.

## How inner tubes are sized?

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.

## Does inner tube have to be exact size?

No, tubes and tires don’t need to match exactly. Tubes are made from butyl rubber which can stretch. Bike inner tubes will accommodate a limited range of sizes. Larger tubes may be more susceptible to getting pinched between the tire and rim.

## How much does a bike inner 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 are bike tire sizes?

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

## 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 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). Unfortunately, things aren’t necessarily quite so simple when it comes to bike tires.

## Can you change the tire size on a bike?

Changing the wheels will not change how you sit on the bike or the “fit”. This bike uses rim brakes and a smaller wheel will force you to modify them heavily if it all possible. You can’t wing this one and doing it right is way more expensive than this or a proper fitting bike is worth.

## Can I use a smaller diameter inner tube?

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.

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

Here it is: pick a tube that matches the numbers embossed on your tire (i.e. “700x40c”). The size of an inner tube varies with the amount of air that you fill them with. So, they’re sold by fixed diameter and range of widths e.g. “ 700×35-43” (which would work for tires ranging from 700x35c to 700x43c).

## What are the numbers on an inner tube?

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.

## Will a 1.75 tube fit a 1.5 tire?

The diameter 1.5″, 1.75″,1.95″ etcetera have tubes which will fall into the range, ie, tire = 26″ x 1.75″ so you can use a tube in the range of 1.5″ – 1.75″.

## Can a 26 inch inner tube fit a 27.5 wheel?

Mr. 26″ tubes work perfectly well with 27.5″ wheels.

## What does the C mean on inner tubes?

The first value, 622, is the bead seat diameter in millimetres. The second value, 19, is the inner rim width. The letter “C” indicates that the rim is the crochet type – the most common rim these days. (Note that those parameters describe the rim rather than the tire.)