presta valve bent

sirdjango
sirdjango Posts: 123
edited August 2010 in Workshop
i have a slight bent on my presta valve needle. is this something i should worry? as for now it does not give me problems. i still can pump air into the tube like normal. just the needle only is bent.
ride like the wind... with the wind... to the wind...

Comments

  • mrushton
    mrushton Posts: 5,182
    edited August 2010
    No it won't unless you are miles from anywhere. Sounds like you twisted the pump head and bent the valve. Always take the pumphead off in a single straight motion if possible. So if the valve is at 12 o clock, push the head down towards 6 o clock.
    M.Rushton
  • anto164
    anto164 Posts: 3,500
    i've bent the head before. I just carefully bent it back!
  • Bar Shaker
    Bar Shaker Posts: 2,313
    +1 on bending it back.
    Boardman Elite SLR 9.2S
    Boardman FS Pro
  • Robert456
    Robert456 Posts: 103
    You may find that it snaps off at some point
  • Berk Bonebonce
    Berk Bonebonce Posts: 1,245
    Buy Vittoria: removable valves cores. No need to chuck if you snap a core.
  • tlw1
    tlw1 Posts: 22,233
    all mine end up this way when I use my mini pump :oops:
  • Radioactiveman
    Radioactiveman Posts: 964
    For the price of a tube change it now. it will only snap when it is most inconvenient.
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  • Berk Bonebonce
    Berk Bonebonce Posts: 1,245
    Radioactiveman wrote:
    For the price of a tube change it now. it will only snap when it is most inconvenient.

    How do you know he's not riding a week old £40 tub? Oh, yeah - he did say 'tube'.

    Can't understand why all valve cores are not removable these days.
  • Monty Dog
    Monty Dog Posts: 20,614
    FWIW the purpose of the collar is only to 'lock' the valve closed - the pressure of the air in the tyre should force it closed anyway
    Make mine an Italian, with Campagnolo on the side..
  • Weejie54
    Weejie54 Posts: 750
    Monty Dog wrote:
    FWIW the purpose of the collar is only to 'lock' the valve closed - the pressure of the air in the tyre should force it closed anyway

    Agreed. The statement that it's slightly bent and causing no problems would suggest that it's absolutely nothing to worry about. It will likely only break if you try and bend it back.
  • sirdjango
    sirdjango Posts: 123
    thank you all for the feedbacks :lol:
    ride like the wind... with the wind... to the wind...
  • ADIHEAD
    ADIHEAD Posts: 575
    Berk Bonebonce wrote:
    Buy Vittoria: removable valves cores. No need to chuck if you snap a core.

    Carefull using CO2 on Vittoria's though, The core can freeze onto the cartridge head and unscrew from the valve - as happened to me last winter. Very annoying and oh yeh then I bent the valve head when using a mini pump.........

    I've left it bent since the winter without problems btw but that's just me, replace it if you're worried!
  • desweller
    desweller Posts: 5,175
    Monty Dog wrote:
    FWIW the purpose of the collar is only to 'lock' the valve closed - the pressure of the air in the tyre should force it closed anyway

    Until it snaps after a puncture and then the core disappears into the tube somewhere...
    - - - - - - - - - -
    On Strava.{/url}
  • Weejie54
    Weejie54 Posts: 750
    Until it snaps after a puncture and then the core disappears into the tube somewhere

    Not very likely. In most cases, the core length is greater than the diameter of the uninflated tube. It would have to break below the bend to find its way into the tube.
    Moreover, the OP suggests that this is a slight bend. I would imagine that a fair percentage of presta valves on the road have a slight bend in the needle.
  • Mad Roadie
    Mad Roadie Posts: 710
    Radioactiveman wrote:
    For the price of a tube change it now. it will only snap when it is most inconvenient.
    +1 you can bet it will go when its your last inner tube and only way home - bend it back see if it snaps - better it breaks at home than anywhere else
  • Weejie54
    Weejie54 Posts: 750
    bend it back see if it snaps

    Bend it 20 times, just to make absolutely sure, why don't you? :roll:

    It's the bending it back that will increase the chances of it snapping.

    It will be fine - and it doesn't prevent you from carrying a spare tube.

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