Shop for Inner Tubes with Big Tyres

Shop for Inner Tubes & Inner Tube Guide

Our inner tube range covers every popular size and application. Simply search our catalogue & buy online! For assistance please call us on 01159 940 900, or alternatively live chat or message us & we will be glad to help!

Search our inner tubes by entering the Rim or Size of the tube you need below. You can also chose a valve type & valve model if known to narrow your search further!

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What Size Inner Tube Do I Need?

Understanding inner tube sizes and searching for the size you need can be a tricky business. The inner tube size you need is determined by the size of the tyre it is to be used in, but inner tubes are flexible and will usually fit a range of tyre sizes! Our Tyre Size Guide will help you work out the size of your tyre if you don't know it. Once you have that you can search for an inner tube that matches that size, check the valve type is correct, and you're done. As inner tubes are flexible, your exact size may not be there, if that's the case then please ask us to recommend an inner tube for you!

How Flexible are Inner Tubes? What Range of Sizes Do they Fit? 

Inner tubes are made of rubber and are very flexible. They are similar to balloons in that if you keep inflating them they keep expanding until eventually they will burst! It isn't safe to over inflate inner tubes beyond sensible and recommended size ranges as the tubes will become weaker as they are strectched. Most inner tubes will cover two or three varying tyre sizes, and these sizes will often be marked on the inner tube as either distinct sizes, or displayed as a range.

Example 1 - A trailer tyre inner tube could be marked up as 135/145/155-12, which signifies that it is suitable for tyre sizes of either 135-12, 145-12 or 155-12. 

Example 2 - A lawn mower inner tube could be marked up as 23X8.50/10.50-12, which signifies that it is suitable for tyre sizes of either 23X8.50-12 or 23X10.50-12.

Example 3- A tractor inner tube could be marked up as 16.9-24 (15.5/80-24) (420/70-24), which signifies it is suitable for tyre sizes of 16.9-24, 15.5/80-24 or 420/70-24.

Search Inner Tubes by Rim Size

Click on a rim size below to quickly see what inner tubes are availabe:

What Valve Do I Need? What's the Difference?

Valves come in different shapes & sizes to accomodate a wide variety of applications & wheel rim configurations. There are four main categories that inner tube valves fall into & within each are a handful of popular valve models to choose from:

1) Straight Rubber Valves - The valve is made of rubber so is inexpensive & durable. Common on car, van, turf, quad, utv & agricultural machinery. 

2) Straight Metal Valves - The Valve is made of metal, so is stronger & more robust than their rubber conterparts. They are often used in high pressure applications, and when there is more risk of the valve being caught/knocked by hazards.

3) Bent Metal Valves - The valve is made of metal, and has a bend in it of varying degrees. The bend is usually to keep the valve stem from catching on hazards as the tyre turns, or to avoid it hitting the wheel rim if space is limited. They are common on trucks and materials handling machinery like forktrucks, sack trolleys & wheelbarrows.

4) Air/Water Valves - The valve is metal & allows water (as well as air) to be pumped through it in order to water ballast tyres/machinery. They are commonly used on agricultural machinery.

Air/Water Valve
Rubber Valve
Straight Metal Valve
Bent Metal Valve

Can't find what you're looking for? Contact us here, or on:

01159 940 900

If you need help or want more information such as the exact dimensions of a valve then please Contact Us so that we can help you further.

Inner Tubes For Other Uses - Floating Down Rivers, Building Rafts etc

Inner tubes are pretty useful things, and every day we help advise people who are using them for all kinds of uses. So whether you need an inner tube for floating down a river, adding flotation properties to your charity raft creation, or for a quirky shop window display, then we are happy to help. So get in touch with your requirements and our team will point you in the right direction.

As a quick pointer, decide roughly how large you would like the gap/hole in the centre of the tube to be (that's called the rim size and it is measured in Inches). Then, decide roughly how large you would like the total diameter of the inflated tube to be (height of the tube if you stood it up-right next to you). If you can give us that information we can advise on some options for you.

If you would like to search for yourself, then the rim size can be inputted into the tube finder on this page, however, the approximate height of your tube will sometimes have to be calculated as it isn't always stated in the size marking. For some smaller tubes for quad bikes and lawn mowers you will see the diameter given, their sizes are written in a format that looks like this - 25X12.00-12. Any size with an 'X' in it basically. The first number (i.e. before the X) is the approximate height/diameter of the inner tube in Inches. So 25 Inches in our example.

Larger tubes (and some very small tubes) are not written in this format and to get the approximate diameter you have to add the size of the hole in the middle (rim size), to two lots of the inner tubes sidewall height. For large sizes written in the format similar to 11.2-28, the first number is the tube width in inches, and sidewall height is normally between 85% to 100% of this value. So 0.85 x 11.2 = about 9.5 inches sidewall height. To get the tubes diameter you then double that and add the rim size, so 2 x 9.5 + 28 = about 47 Inches tall.

Does the Quality of Inner Tubes Vary

Inner tube quality varies from manufacturer to manufacturer. The mix of natural rubber, synthetic rubber, carbon black and other chemical compounds determine the tubes strength, durability and it's overall quality. At Big Tyres we sell good quality tubes from manufacturers that have been tried and tested over the years. Be careful when buying inner tubes from other sources as there are some very poor quality tubes on the UK market at present.