Bicycle Inner Tube Valve Stem Types

It is also found on many bicycles.

Bicycle inner tube valve stem types.

The outer valve stem is manufactured in various lengths for different applications and has a. Schrader presta woods dunlop schrader. If you have a presta valve in a schrader hole use a rubber ring grommet in the hole available at bike shops to keep the presta valve from sliding around and damaging the tube or the valve itself. The main reason for this came down to keeping the strength of the wheels rim with the smaller diameter hole.

Valve stem types l r. A third rarer type of valve is the woods or dunlop style. Bicycle inner tubes have two major types of valves. A lock nut to secure the stem at the wheel rim and a valve cap may also be present.

The valve stem opens by unscrewing a knurled textured nut at the top. 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. Unlike a schrader the system doesn t use a check valve it seals entirely based on pressure in the tube or tire. The rim hole for schrader valves is bigger than the hole for presta valves.

The longer valve stems also make inflating them easier. Buy products such as bell sports standard bicycle inner tube 26 x 1 75 2 25 35mm schrader valve at walmart and save. Shop for bike tire tubes in bike components. The valve stem is approximately 8mm 5 16 inch in diameter.

If you ve got deep section wheels you ll need bike inner tubes with longer valves to make sure that they protrude. There are three types of valve stems on bicycles schrader presta and woods dunlop. Learn the difference between presta and schrader valve stems on bicycle tubes and how to use different pumps to inflate them. Valve length and valve extenders.

The schrader or american type valve is common on cars and motorcycles. Visit us at https hostelshop. 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. Choosing between presta and schrader bicycle valve types i picked presta valves for the inner tubes for my next bicycle tour around the world.