Bicycle inner tubes are divided according to their valve types and there are three of them available in the market.
Bicycle inner tube valve types.
Schrader presta and dunlop or wood style.
Most bikes come with wheels that use presta valved tubes.
A third rarer type of valve is the woods or dunlop style.
Bicycle inner tubes have two major types of valves.
Inner tube valve types.
These valves are quite narrow and have a screw at their valve tip.
Presta valve inner tube.
Presta inner tubes are available in different valve lengths to be appropriate for use in deep section rim profiles.
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.
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.
Wider than a presta valve and typically the same circumference top to bottom.
Angelsimon getty images schrader.