700C
Need a 700C bicycle tube? Grab yourself a spare from our huge range of options, thorn resistant, ultra light, heavy duty or super wide. In stock now!
A quick run down on how inner tube sizing works
Your inner tube is the ‘balloon’ inside your tyre which punctures!
To find the right size tube you need to consult the sidewall of your tyre.
Your tyre should have somewhere on it printed into the rubber itself (harder to see) or branded on the side, it’s size.
The size format may be something like 700 x 32c or it may say 32-622. Sometimes it will have both, and both are helpful!
The big number in both of these examples represents the tyre circumference, and the smaller number represents the width of the tyre.
So you are looking for an inner tube that matches your tyre size.
However, you will notice that inner tubes have a range of sizes that they cover (most of the time).
This is because inner tubes are balloons, so an inner tube can suit a variety of sizes as it inflates inside the tyre.
For instance a 700 x 32c tyre, can use an inner tube which is 700 x 32 – 38c. Because the inner tube will suit both a narrower 32c tyre, as well as a 38c tyre.







