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.
Road bike tyre valve caps.
The outer valve stem is manufactured in various lengths for different applications and has a.
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Furthermore it requires more knowledge than one might assume to use correctly.
This is a thin narrow tube that has a metal screw feature that seals the valve shut.
A lock nut to secure the stem at the wheel rim and a valve cap may also be present.
Road bikes and some hybrids use tubes with a presta valve.
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