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  1. #1
    No Clue Crew
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    Marz 55 TST2, do I need an air adapter?

    2008 55 TST2 with upgraded '09 cartridge, just rebuilt by Marz.

    This fork has a coil in the left leg with low-pressure negative air. I generally use high-pressure air forks. I hooked up my regular rockshox air pump to the schraeder valve on the left leg, but was not able to adequately control the air input to dial it in.

    I bought a low-pressure rockshox pump, but can't seem to get the fork to take air with it. Do I need to purchase the Marz. air adapter for this fork? I'm confused because standard pumps do thread on. Thanks.

  2. #2
    RIP Friendgirl
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    Just count the # of pump strokes with your regular shock pump.

    Tell me what riding weight you are & i can get you close.

  3. #3
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    Hmm. I'm roughly 200-205 with my pack/gear.

    So, do I need the adapter? I don't mind spending a couple bucks to have it; I'm kind of a weenie about pressure and it really feels like this fork will be sensitive 1-2 psi on either side of the sweet spot.

  4. #4
    RIP Friendgirl
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    No Adapter Needed

    It's just a regular schraeder valve. I'm the same weight geared up & use 2.5 to 4 PSI. Yes,that low because it's just to boost the spring. The range per Marzocchi is 0 to 15 PSI.

    To get a repeatable pressure you may need to find a shock pump that you can remove the gauge & replace with a 0-15 PSI one. What i did.....

    Might be a good time to check the oil height on the spring side (left) also as it controls bottom out resistance. Let the air out, take cap off with a cassette tool & remove black plastic spacer with the spring. Compress fork ALL the way to the crown & measure from the top of where the cap was to the oil. For your weight i would start with 55mm.

  5. #5
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    Weird. As I said, I bought a low volume pump. When I use it, the dial shows air going in, but when I remove it, there's no air in the fork (as demonstrated by testing sag).

    With my high-volume pump, the fork takes air, but the dial minimum reading is 10, so it's impossible to tell how much is actually in the fork.

  6. #6
    RIP Friendgirl
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    Then just use your regular shock pump & count the strokes. One pump is approximately 1 PSI. Just make sure you let all the air out of the leg first.

    Don't blame the fork just because your newly bought low pressure pump doesn't seem to work

  7. #7
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    No issues w/ the fork so far. I bought it from the original owner, who had a couple of failures. It's an '08 warranty rebuild with '09 crown, uppers and internals. Today was the first run after return from Marz. It's on my Turner Six Pack.

    Obviously I had to guesstimate air pressure, just going off of sag. At whatever pressure I ran today, the fork was OK. A little bit stiff and I still have 40mm of unused travel after multiple drops down National this morning.

    I'll try your method. 1 psi per pump stroke. Thanks.

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