Bicycle Inner Tube Valve Stem Types

The valve stem is the weak point of a tube.

Bicycle inner tube valve stem types. Presta valve inner tube. The outer valve stem is manufactured in various lengths for different applications and has a. These keep the valve clean and that is all. Some include a special wrench to unscrew the valve core.

Inner tube valve types. A bicycle will simply come with wheels that are pre drilled for either presta or schrader valves. Anyone considering building their own wheels for bicycle touring replacing wheels. Adding a little air to shape the inner tube before mounting the tire can help prevent pinches during tire installation.

A presta valve cap will work on a woods valve but a woods valve cap is too short for a presta valve. These valves are quite narrow and have a screw at their valve tip. The presta valve also called french valve fv or sclaverand valve is a valve commonly found in high pressure road style and some mountain bicycle inner tubes it comprises an outer valve stem and an inner valve body. A third rarer type of valve is the woods or dunlop style.

Schrader valves are the same as those found on most cars they re much wider and won t fit through a hole made for a presta valve. Ensuring you have the right valve type for your bike s. Presta schrader and woods valves are each most common on particular types of bikes but they function largely the same and are frequently but not always interchangeable on wheel rims. The inner tube has a valve used to keep it pumped up.

Valvestemcore bicycletube bicycletubevalvestemcore tubevalvestem. A lock nut to secure the stem at the wheel rim and a valve cap may also be present. Metal schrader valve caps available at an auto parts store or better bike shop have a rubber seal to prevent leakage even if the valve itself is leaky. Most bikes come with wheels that use presta valved tubes.

Most of the time no choice or thought is involved. It is vulnerable. Presta valves also come in various lengths this is so people using deep rim wheels will have enough valve poking out the end to be able to inflate the tube. Most inner tubes have either a presta or schrader valve which we ll come on to.

Bicycle inner tubes usually come with plastic valve caps.