Bicycle Inner Tube Valve Stem Types

The valve stem is approximately 8mm 5 16 inch in diameter.

Bicycle inner tube valve stem types.

Valve stem types l r. Valve length and valve extenders. The outer valve stem is manufactured in various lengths for different applications and has a. There are three types of valve stems on bicycles schrader presta and woods dunlop.

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. Visit us at https hostelshop. The main reason for this came down to keeping the strength of the wheels rim with the smaller diameter hole. It is also found on many bicycles.

Shop for bike tire tubes in bike components. 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 schrader or american type valve is common on cars and motorcycles. 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. 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 longer valve stems also make inflating them easier. A third rarer type of valve is the woods or dunlop style.

If you ve got deep section wheels you ll need bike inner tubes with longer valves to make sure that they protrude. Schrader presta woods dunlop schrader. Finally keep an eye on the valve length. Learn the difference between presta and schrader valve stems on bicycle tubes and how to use different pumps to inflate them.

Bicycle valve stem types. Bicycle inner tubes have two major types of valves. 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 valve stem opens by unscrewing a knurled textured nut at the top.