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  1. #1
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    Trek STP 400 Rear Shock

    I've got a 2002 STP 400 that I've converted to single speed. It's got a Sid Race rear shock that was designed just for this frame. It just lost any capability to hold air and I'm looking to rebuild. I've seen in the past a manual on how to do this or would like to hear anyone else's experience with this frame problem.

  2. #2
    Former Bike Wrench
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    have you tried just replacing the valve core?

    this is a common place for air shocks to leak and is a 50 cent fix

  3. #3
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    Thanks for the tip. The LBS sre shut down here for the weekend, I'll try on Monday. There is also a grey oil residue on the shaft that wasn't there before if you have any insight on that.

    Thanks again

  4. #4
    Former Bike Wrench
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    hmmm...that could be a blown dampener. I believe Hippy-Tech can work on those old SID shocks.

    If that doesn't work, I know Cane Creek makes a replacement shock for the STP bikes...though its the AD-5 which has no adjustments other than air pressure

  5. #5
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    Well here it is a solid two months later and I got my rebuilt shock back from Hippie Tech yesterday. Put it on and works fine on the road, I'm going to Ruston, LA this weekend for a prerace run to see how good it's really going to feel. Cane Creek wanted $210.00 for a comparable shock but with a single chamber as you mentioned. Jerry at Hippie tech completely rebuilt the original for $185.00. I guess as long as you're not it a big hurry, the quality is good, after all, Jerry likes to ride too.
    Thanks for your help....
    ccook

  6. #6
    MC Hammer
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    Well I'm glad you got your shock working.............but I'm thinking with the two month wait and the fact that you only saved 25 bucks I would have gone with the new fork vs a rebuilt one.............but that's just me........used to have an STP and I miss that thing dearly

  7. #7
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    The problem I was having was the rear shock.....Rock Shok no longer makes that model...That being the case, I'm glad to be able to maintain original equipment. The front fork is a SID Race Titanium with the slick gold finish that I fortunately haven't had any problem with. Also, it being my single speed and not my only bike I haven't missed any crank time

  8. #8
    MC Hammer
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    Sorry I mistyped...........meant to say "new shock", not "new fork"

  9. #9
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    No problem......

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