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  1. #1
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    Weird PSI thing.

    Just getting back into riding my bike, I'm just a casual rider but I'm rocking 20x2.0 tires and the tires say to inflate to 45-60 PSI...however no matter how long I inflate, the gauge seems to indicate that they are sitting comfortably at 25 PSI. these are brand new tubes, and I know for a fact that my gauge isn't broken. What gives????

  2. #2
    Banned. timmyquest's Avatar
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    Could be the pump. You cant take a bike pump and pump up a tube to 5,000 PSI could ya? So...it's not too much to say that some pumps cant get to say...25psi, in which case it's either cheap or broken.

  3. #3
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    Well, it's an air compressor which i have used to inflate car tires....but come to think of it it has been kind of lax in the car department too lately. hmm...

  4. #4
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    If it is indeed a new pump I need, could anyone recommend an affordable pump of quality?

  5. #5
    Senior Member squeegy200's Avatar
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    Quote Originally Posted by ultimatio
    If it is indeed a new pump I need, could anyone recommend an affordable pump of quality?

    At a minimum you will need a handheld pump which you can take with you on rides. Puncturing a tire is inevitable and if you don't already have an emergency pump, a simple flat will leave you stranded far away from home. Go to your local bike shop and purchase a patch kit and a pump. Have a salesperson show you how to use it.

    Second recommendation is a good floor pump. Not necessary but very beneficial. The guages are usually accurate and will inflate tires well above 100+ psi if necessary.

    Lastly, I don't recommend using an aircompressor to inflate bicycle tires.

    I use a Serfas brand floor pump but there are other good quality floor pumps from Blackburn, Specialized, Silca, Topeak, etc.
    98 Colnago Altain
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  6. #6
    THIS SPACE FOR RENT
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    you sure you don't have the regulator on the air compressor screwed down so that it won't put out more than 25 psi?

  7. #7
    Senior Member spunkyruss's Avatar
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    Something in the system is unable to maintain more than 25 psi. I would take Landgolier's suggestion, and check the regulator first.

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