1996 Mongoose size 19″ Crossway 650 replacement size inner tube

Asked by: Eric Nielsen

How do I know what size inner tube I need?

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 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.

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.

What does 700x32c mean?

Here’s the simple answer: At its most basic, a 700x32c tire is around 27 1/2 inches by 1 1/4 inches (or 1.26 inches).

What happens if you use the wrong size inner tube?

ANSWER: yes smaller tubes can fill larger tyres, but they may fail quickly and unexpectedly. I had this exact same situation.

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.

What happens if inner tube is too big?

If a tube is too big in overall diameter there is a danger that it will “telescope” inside the tire (similar to “intussusception” of your intestines), resulting in a lump and, eventually, a split in the tube. Having the tube inflated too much while installing it is one way you can get this situation.

Are all 700c tubes the same?

There are a handful of different tire widths for 700c wheels and you need to make sure that you get an inner tube which is suitable. Too small and it may pop. Too big and it will be under-inflated and too soft.

Will a 26 tube fit a 650B?

26″ tubes are a better choice for 650B than 29″ tubes.

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!

Can I use a bigger inner tube for my bike?

Yes, it’s perfectly safe to use the next larger size tube in a smaller tire. It’s a common trick used by bike messengers to reduce the chance of flats. The only downside is a slightly heavier wheel since you’re using more tube that you really need.

How do I choose a bike tube size?

Quote from video: There are a whole wide range of tubes to choose from but luckily your tire is going to give you a little bit of guidance. If you check along the sidewall of your tire it'll tell you your size. So for

How do you measure an inner tube on a bike tire?

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.

How do I know my bike tire tube size?

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.

Will a 26 inch tube fit a 27 inch tire?

26″ tubes work perfectly well with 27.5″ wheels.

How are bike tubes measured?

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.

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!

What size is 700c in inches?

roughly 29-inches

700C = Bigger than 650B & 26, A FAT 700C tire (say, 2-inches wide or more) is called roughly 29-inches, and is called a 29-er. 650B = Medium = 27.5-inch.

What size is a 700c tire?

700c. A standard road tire is 700c x 23mm, indicating a tire diameter of approximately 700mm and a width of 23mm. When shopping for road tires, you’ll look for 700c x your preferred width, 23mm being the slimmest option and going up to 36mm.