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  1. #1
    King of My Neighborhood HarryMan's Avatar
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    Tire Inflation Problems

    My 27x1 wheels have presto valves. I used a schrader adapter and then my new portable bicycle pump but I can't seem to get the pressure up enough in the tire. It is rated for 100psi. I am bottoming out on bumps. I know this is not acceptable but I don't know how to get the pressure any higher.

  2. #2
    Banana seat Captain Slow's Avatar
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    I've seen presta adapters not fit tightly enough into inexpensive shraeder pumps.

    You would probably do well to buy a good floor pump, Topeak or Blackburn, etc, that has a shraeder/presta head. I've seen decent ones from $40US, certainly no more than $50.

    Portable pumps... I'm assuming you mean a frame or pocket hand pump... will fill that tire, but it could take a while. They work best in a getcha home kind of way...

  3. #3
    Senior Member
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    buy a floor pump. I got a $30 "tech force" (i think?) from the bike shop when I bought my road bike. Goes to 120 EASY...i only pump to 115/110 though. Well worth it.

  4. #4
    King of My Neighborhood HarryMan's Avatar
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    Thanks. I bought a floor pump with a gauge today. It should do the trick.

  5. #5
    King of My Neighborhood HarryMan's Avatar
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    I replaced my tires and tubes and then inflated them to the 90 psi. No wonder I was bottoming out. My old tires weren't nearly this tight. I was probably only getting to 45 or 50 with the small hand held pump. Thanks for all the advice.

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