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Getting True Shock PSI

HOME FORUM RIDING FEELS GOOD FORUM TECH TALK Getting True Shock PSI

This topic contains 11 replies, has 5 voices, and was last updated by  Somers 2 months ago.

Viewing 12 posts - 1 through 12 (of 12 total)
Fox 34

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  • #817301

    MikeC
    Participant

    Is anyone using an adapter or highend pump to ensure you get a true psi reading from your shock pump?

    I found a moto shop that produces an attachment.

    Just curious for those who are active suspension tuners what you use to ensure you are getting a true measurement.

    Santa Cruz

    #817303

    Renegade Hardware
    Participant

    I just use a pretty decent shock pump, one that allows you to back off the valve before disconnecting (I think they all do this now, though). Since shock setup is based on sag, the reading is moot if you’re using the same pump each time since sag is what you’re measuring, then repeating the same pressure each time or adjusting accordingly.

    to me, the ease of use for the connection and being able to back off the valve while keeping pressure is the key. So long as it’s reliable in it’s readout the results should remain the same.

    #817306

    MikeC
    Participant

    I just use a pretty decent shock pump, one that allows you to back off the valve before disconnecting (I think they all do this now, though). Since shock setup is based on sag, the reading is moot if you’re using the same pump each time since sag is what you’re measuring, then repeating the same pressure each time or adjusting accordingly.

    to me, the ease of use for the connection and being able to back off the valve while keeping pressure is the key. So long as it’s reliable in it’s readout the results should remain the same.

    Not sure what you mean by back off the valve before disconnecting. Are you talking about the pump threads still being engaged when the pump releases the needle of the valve?

    I was more looking for a way to track shock performance. You are correct in that the sag is the important setup measurement but if I track that I have to add X more psi over time to achieve the same sag then it would be an indicator of issues.

    I was reading about the various inaccuracies of some pumps when I came across this no loss adapter that an aftermarket moto company made.

    I have a FOX digital pump right now.

    #817307

    BlurredLines
    Participant

    As much as inaccuracy is a problem, consistent inaccuracy is exactly that. Consistent. Pair a single pump reading with sag measurements and you’ve got the idea. Will that translate to another pump, probably not, but it will always give you a starting point

    #817309

    Renegade Hardware
    Participant

    that’s what I mean, consistency will help with setting up the shock, so even if it’s off on its reading it should be able to tell you if you’re +/- from previous setting with the same pump.

    Mike, yea thats what I mean, the bit that disengages the needle, preventing most air loss. Curious on the lossless system, I’ll go check it out.

    #817311

    MikeC
    Participant

    As much as inaccuracy is a problem, consistent inaccuracy is exactly that. Consistent. Pair a single pump reading with sag measurements and you’ve got the idea. Will that translate to another pump, probably not, but it will always give you a starting point

    Very true and that’s my current methodology. Finding the zero loss adapter was the inspiration for the post, to see if many others were using one. I am not a “tuner” I am a set and forget kinda guy, but since getting the CC DB Inline and dealing with it failing I was interested in tracking it more. I know Marc and others are very in tune and wanted to see if anyone used them.

    #817312

    Renegade Hardware
    Participant
    #817328

    MikeC
    Participant

    https://www.worksconnection.com/details.php?id=1261

    I assume this is the pc?

    Yeah that is it. Wonder if any shops around here carry them.

    #817331

    iBeRash
    Participant

    I bought the Topeak DXG shock pump. It’s got their “Pressure-Rite” connector, which is similar to that adaptor. That’s the first thing I thought of when he mentioned backing off the valve before disconnecting.

    #817333

    Renegade Hardware
    Participant

    yes, that’s exactly what I meant. My shock pump has that already on it. Scott pump iirc. Works very well and is repeatable. Does essentially the same thing as the works connection adapter.

    #817343

    MikeC
    Participant

    Thanks guys. My Fox pump doesn’t have that 2 stage engagement, like the topeak one, it was pretty cheap. I will look into those 2 pumps as a replacement.

    #817427

    Somers
    Participant

    I had no idea that thing existed, must check my shock when I get home today.

    Mike, when the Cane Creek failed did you send it to Live to Play or to Cane Creek in the US?

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