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Thread: SKS Matrix Zoom

  1. #1
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    SKS Matrix Zoom

    Hi,

    I have SKS Matrix Zoom pump, but now I have realised that I can pump with it only 3 bar.


    Can I pump tyres a bit more, if I change valves to presta type?

    BTW, my tyre size tire size is 26x1.95.

    Please help
    :-(

  2. #2
    Wood Licker Maelstrom's Avatar
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    Umm...what? what is the psi on the tire and what is currently in there. And what the heck is 3bar.

  3. #3
    Scooby Snax
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    Originally posted by Maelstrom
    Umm...what? what is the psi on the tire and what is currently in there. And what the heck is 3bar.
    its a suspention design that doesnt isolate the peddles...

    Its actually 3times Barometric pressure, I think 3 bar is 45lbs or so?
    1 bar is close to 14lbs if I remember...

    Scoob

    edit, I goofed, 1 bar = 14.5 psi, so 3 bar is 43.5 psi, that is respectible for a mountain tire.

    As far as presta tubes? I dont thing that it would make a difference. whethier or not the valve was different, the pump is going to deliver a max of 3 bar. if thats what I have heard you say.
    Last edited by Scooby Snax; 05-04-03 at 07:52 PM.

  4. #4
    DiL
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    Presta valves are miserable. If there is an advantage to them I'm not aware of it.
    Give a man a fire, and he'll be warm for a night. Light a man on fire, and he'll be warm for the rest of his life.

  5. #5
    Wood Licker Maelstrom's Avatar
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    Originally posted by DiL
    Presta valves are miserable. If there is an advantage to them I'm not aware of it.
    nope...nothing..I won't use them

  6. #6
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    So, no help for me?
    :-(

  7. #7
    Eleventy Billion Posts schnell's Avatar
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    Presta valves require a smaller hole in the rim...Easier to inflate with a hand pump because there is no spring...built in valve cap...


    Maelstrom, are you drilling your rims for schrader valves?
    There are two kinds of people in this world I can't stand. People that are
    intolerant of other people's cultures and the Dutch.

  8. #8
    Wood Licker Maelstrom's Avatar
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    No my original rims came with presta and I never had anything but problems so I have never switched back. All of my rims comes with the hole drilled for schrader

  9. #9
    DiL
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    Mine came presta too, what a pain. Every bike shop I asked to slime the tires told me they'd have to drill for shrader and put a new tube in it. My guage doesn't work on them, my pump doesn't work on them, my inflator doesn't work with them, and I can't slime them. A tough sell at best.
    Give a man a fire, and he'll be warm for a night. Light a man on fire, and he'll be warm for the rest of his life.

  10. #10
    Eleventy Billion Posts schnell's Avatar
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    Dumb question, but are your pump and gauge cycling specific? Schrader is usually used on low-end rims/kids bikes nowadays.
    There are two kinds of people in this world I can't stand. People that are
    intolerant of other people's cultures and the Dutch.

  11. #11
    DiL
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    Pump is cycling specific, my frame pump that is. Doesn't fit it. Guage is not. There is just no reason for me to use Presta. I stand to gain nothing by it. If I'm in a hurry, I'll use an inflator. The speed gained pumping on a presta valve is obsolete compared to an inflator, regardless of valve. (it doesn't use 12g CO2 carts)
    Give a man a fire, and he'll be warm for a night. Light a man on fire, and he'll be warm for the rest of his life.

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