How to Check the Pressure of a Tire With a Presta Valve

Written by wade shaddy
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How to Check the Pressure of a Tire With a Presta Valve
Presta valves are used on road bike tires. (cdgale21 image by Paco Ayala from

There are two types of bicycle tire valves, Schrader and Presta. Schrader valves are the same type used on car tires and are found on less-expensive cruisers, mountain bikes and kids bikes. Presta valves are used almost exclusively on road bikes and high-end mountain bikes. Presta valves are characterised by a very narrow stem that will not fit common air nozzles and pressure checkers. To check tire pressure on a Presta-equipped tire, you need to use a Presta valve adaptor.

Skill level:

Things you need

  • Presta valve adaptor
  • Tire pressure gauge

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  1. 1

    Remove the valve cap from the valve stem.

  2. 2

    Grab a small bead with your fingers that extends up from the centre of the valve stem.

  3. 3

    Twist the bead counterclockwise with your fingers until it stops.

  4. 4

    Insert the threaded end of the valve adaptor over the top of the Presta valve and screw it onto the valve.

  5. 5

    Insert the tire pressure gauge onto the top of the Presta valve adaptor and read the pressure displayed by the pressure gauge.

Tips and warnings

  • Always follow tire pressure recommendations printed on the side of the tire when pressurising bike tires.

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