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Bicycle tube valve stem types.
If you ve got deep section wheels you ll need bike inner tubes with longer valves to make sure that they protrude.
Valve length and valve extenders.
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.
The valve stem opens by unscrewing a knurled textured nut at the top.
Bicycle inner tubes have two major types of valves.
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.
Unlike a schrader the system doesn t use a check valve it seals entirely based on pressure in the tube or tire.