Valve length and valve extenders.
Bicycle tube valve stem types.
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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Now that said it is extremely difficult to get any parts of a high quality in some parts of the world anyway.
Finally keep an eye on the valve length.
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.
The valve stem opens by unscrewing a knurled textured nut at the top.
If you ve got deep section wheels you ll need bike inner tubes with longer valves to make sure that they protrude.
Bicycle inner tubes have two major types of valves.