A third rarer type of valve is the woods or dunlop style.
Bicycle tube valve stem types.
Unlike a schrader the system doesn t use a check valve it seals entirely based on pressure in the tube or tire.
Bicycle valve stem types from experience i know that the one main drawback to choosing presta is that sourcing new inner tubes may be nigh on impossible in certain parts of the world.
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Finally keep an eye on the valve length.
Valve length and valve extenders.
Bicycle inner tubes have two major types of valves.
Now that said it is extremely difficult to get any parts of a high quality in some parts of the world anyway.
The valve stem opens by unscrewing a knurled textured nut at the top.