Bicycle Inner Tube Valve Stem Types

What is a bicycle inner tube.

Bicycle inner tube valve stem types. Bicycle valve stem types. Most bikes come with wheels that use presta valved tubes. The main reason for this came down to keeping the strength of the wheels rim with the smaller diameter hole. A lock nut to secure the stem at the wheel rim and a valve cap may also be present.

Presta valve inner tube. The humble inner tube may be one of the simplest parts on your bike but with a wide range of sizes different valve types and a choice of materials choosing the right tube isn t necessarily as. The outer valve stem is manufactured in various lengths for different applications and has a. The inner tube is inflated beneath the tire as acts as air cushion providing you with a safe comfortable ride.

Inner tube valve types. There are three types of valve stems on bicycles schrader presta and woods dunlop. A third rarer type of valve is the woods or dunlop style. I john know that sheldon s photos show this nut in place on the presta and woods valves but it has only one use to make installation of the pump head slightly easier when the tire is uninflated.

Bicycle inner tubes have two major types of valves. It is also found on many bicycles. 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. The schrader or american type valve is common on cars and motorcycles.

Some inner tubes have a valve stem threaded all the way down to the rim and a knurled jam nut to clamp the valve stem to the rim. Learn the difference between presta and schrader valve stems on bicycle tubes and how to use different pumps to inflate them. Schrader presta woods dunlop schrader. An inner tube is a balloon like structure that is inflated and deflated through a valve.

The longer valve stems also make inflating them easier. 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. Choosing between presta and schrader bicycle valve types i picked presta valves for the inner tubes for my next bicycle tour around the world. The valve stem is approximately 8mm 5 16 inch in diameter.

These valves are quite narrow and have a screw at their valve tip. Visit us at https hostelshop. Let s start with the basics what are inner tubes.