So a bicycle tube with the schrader valve can be pumped up at your local gas station if no hand pump or co2 cartridge is available.
Bicycle tube valve types.
There two main bike valve types used on bicycle inner tubes nowadays are presta and schrader valves.
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.
Hand tighten the presta nut only and do not overtighten or you could pull the valve up far enough to puncture the tube.
A third rarer type of valve is the woods or dunlop style.
Presta valve inner tube.
Angelsimon getty images schrader.
Learn the difference between presta and schrader valve stems on bicycle tubes and how to use different pumps to inflate them.
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.
These valves are quite narrow and have a screw at their valve tip.
Most of the time no choice or thought is involved.
With a deflated tube the valve may slide inside the rim making it difficult to attach the pump correctly.
Bicycle tubes with presta left and schrader right valves.
Inner tube valve types.
Most bikes come with wheels that use presta valved tubes.
Wider than a presta valve and typically the same circumference top to bottom.
A bicycle will simply come with wheels that are pre drilled for either presta or schrader valves.
You can go bike touring with either bicycle valve stem types.
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 presta valve is on the left.
Presta nuts can be used only on presta valves threaded all the way down to the tube.
The outer valve stem is manufactured in various lengths for different applications and has a.
A lock nut to secure the stem at the wheel rim and a valve cap may also be present.