Spare inner tubes are a must have for any cyclist as these lightweight, inexpensive items can really save the day should you experience a puncture whilst out riding.
It is very important that you select the right size tubes for your rims paying close attention to both diameter and width. In most cases the required dimensions will be written on the side wall of your tyre for easy reference.
It is also important to purchase tubes with valves that are compatible with your bike pump. There are two main types of valves used in bike tyre tubes:
Valve length is another consideration when buying bike tubes as if you have deep rim profiles, you’ll require a Presta valve which is long enough to extend through the rim hole and provide enough length for the pump nozzle to lock onto.