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  1. #1
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    Can I use gas station air pump on shocks?

    Is it safe to use a gas station air pump on bike shocks? It has a built in PSI measure.
    Or does it push to much air?

    I have a 2008 specialized rock hopper with rock shox
    where do I find out how much air to pump into the shocks?

  2. #2
    Senior Member spdracr39's Avatar
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    No they put out way to much air and you could damage the shock. You need a shock pump.

  3. #3
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    If you can set the psi on the pump regulator so that it doesn't pump any more pressure then what you want, you could use a gas station pump.

    If you can't set the pressure on the pump, don't use a gas station pump.

    Shocks & forks only need small amounts of air and it might be at a high pressure.

    Tire pumps = large amount of air at lower pressure

    Shock pumps = small amount of air at higher pressure

    Shock pumps only pump a small amount of air, this makes it easy to regulate how much air you put into the fork/shock.
    Shock pumps also have a bleed valve, this makes it easy to let out a small amount of air if needed.


    I have a 2008 specialized rock hopper with rock shox
    where do I find out how much air to pump into the shocks?
    Pump the fork up till it has 20 to 25% sag.
    Sag is how much the fork compresses under your weight when you are on the bike.
    100mm travel fork = 80mm of exposed stanchion with 20% sag or 75mm of exposed stanchion with 25% sag

    I suggest you get a shock pump if you have a air fork/shock.

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