What is the actual size of a 26×1.5/2.2 tube?

Asked by: Vanessa Givens

How do I know the size of my inner tube?

Checking the Inner Tube Size You Need



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.

Does bike tube have to be exact size?

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. For example, one of our most popular tubes is the 26 x 1.75-2.125” which means it fits a 26-inch diameter tire with a width in the range of 1.75 to 2.125 inches.

What is the tube size?

Tubing is measured by the OUTSIDE DIAMETER (O.D.), specified in inches (e.g., 1.250) or fraction of an inch (eg. 1-1/4″). Pipe is usually measured by NOMINAL PIPE SIZE (NPS). Although it is related to the outside diameter, it is significantly different.

What size is a 700c inner tube?

Road wheels are usually ‘700c’ sized (622mm in diameter, when measured from the bead seat to bead seat) and will need 700c tubes to match. These are sometimes referred to as 28in tubes, but that’s relatively uncommon. Meanwhile, mountain bike and commuter bike wheels and tyres are typically sized in inches.

What do the numbers on an inner tube mean?

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 the inner tube the same size as the tire?

The tube should match the tire size diameter closely. However, tires that are close in bead diameter may use the same inner tube. For example, an inner tube for an ISO 630 tire (27-inch) will also fit an ISO 622 (700c) tire.

Can I use wrong size 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.

Is a bike tube supposed to be bigger than the wheel?

A tube should not have excess length, and doubling on itself will cause the tire to feel uneven while riding, as well as increase the likelihood of flats.

What happens if you use the wrong size inner tube?

With a diameter that is too big (e.g. a 29” tube for a 27.5” wheel), the tube will be too loose on the wheel rim and you may end up with bunching in the tube rubber. This can lead to punctures. If the diameter is too small (e.g. 24” for a 27.5” wheel) it is unlikely that the tube will stretch around the wheel rim.

Is plastic tubing measured by ID or OD?

Tubing is measured using the size of the inside diameter (I.D.) and outside diameter (O.D.). The measurement between the inside and outside diameter of a plastic tube is referred to as “the wall” and is used to measure tube strength: the thicker the wall, the stronger the tube.

What is the difference between pipe size and tube size?

What is the difference between Pipe and Tube? In short: Tube is measured by outside diameter, pipe is measured by inside diameter. There is often confusion as to which size die the customer actually needs – Pipe Size or Tubing Size. Keep in mind that pipe size refers to a nominal – not actual – inside pipe diameter.

Is pipe measured by inside diameter?

When it comes to measurement of pipe, it is measure by the inside diameter, often called the nominal diameter. Nominal Pipe Size (NPS) is a North American set of standard sizes for pipe. The term nominal refers to pipe in non-specific terms and identifies the inside diameter with a non-dimensional number.

How do I know what size valve stem I need?

According to this rule of thumb, low-profile rims that measure around 25mm require a 40mm valve stem. For those wheelsets measuring 35-45mm, a 60mm valve stem will normally be long enough, while anything taller than 50mm demands an 80mm valve stem.

What does the C mean on inner tubes?

700C tires



The “700” refers to the rough outer diameter of the tire, although the actual outer diameter will vary greatly, depending on the type of tire and tread pattern. The “C” means NOTHING; it does not stand for “centimeters.” Think about it–a 700-centimeter tire would be HUGE, over 21 feet tall!

What does 700x32c mean?

What Does 700x32c Mean? 700x32c tires are approximately 700mm in diameter and 32mm in width. Translated to inches, you’re looking at roughly 27 ½ inches by 1 ¼ inch. However, these are considered nominal measurements, meaning they’re a close estimate rather than an exact number.

Is 26 inch tube the same as 700c?

What Is The Difference Between a 26 Inch and a 700c Wheel? This brings us around back to the same answer; they are the same diameter, but a 26-inch tire will fit onto a 700c rim but not the other way around because of the difference in rim thickness.

What does 700c mean?

700C tires



The “700” refers to the rough outer diameter of the tire, although the actual outer diameter will vary greatly, depending on the type of tire and tread pattern. The “C” means NOTHING; it does not stand for “centimeters.” Think about it–a 700-centimeter tire would be HUGE, over 21 feet tall!

Is 28 inch the same as 700c?

So to make it absolutely clear: 700c, 28 inch (or at least nearly all of them) and 29 inch are all the same: etrto 622.

What does 700×28 32c mean?

700x28c means a 700c tyre which is 28mm wide. 700x32c means a 700c tyre which is 32mm wide. Like kouhoutek said the same inner tube will a range of tyre widths, it will say something like “700 x 18-25c” meaning it is for road bikes and will fit anything from 700x18c up to 700x25c.

How wide is a 32c tire?

Typical road bike tire: 700 x 32c indicates a tire that has an outer diameter of 700mm and a width of 32mm.

What does the C stand for on tire size?

The C-Type tire, on the other hand, is specifically meant as a commercial-rated tire, with a higher load rating for a given size than many LT tires. These C-Type tires will show the letter “C” immediately after the wheel diameter in the tire code. Example: 225/75R16C.