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Fuel is ready to roll; Rear shock still losing pressure, thoughts?

Tuesday, July 3, 2012 by  
Filed under Daily Blog

July
3
2012
My rebuilt American Classic 26" All Mountain wheel. Good as new!

My rebuilt American Classic 26″ All Mountain wheel. Good as new!

My rebuilt American Classic 26″ All Mountain wheel was delivered by FedEx super early yesterday. Because the wheel arrived before noon, I was able to install the cassette and rotor, and then get the tubeless tire mounted and sealed up during my lunch hour. After work I installed the wheel on my Fuel, and then gave the bike a complete lube and tune-up.

When I woke up this morning I was happy to find the newly mounted tubeless tire was maintaining air pressure perfectly. I’m ready to ride!

My bike is running almost flawlessly, but one thing still has me a little baffled. You may recall that my rear shock was losing air pressure very quickly, and so I replaced all the seals. After the seal replacement the shock seemed to be holding air just fine, but I wasn’t able to give it a real test thanks to the storms and my bent rim. Well, last night I aired the shock up to 180 PSI, and this morning it’s 150 PSI. Something is clearly still wrong. I’m pretty confident I installed seals properly, as I took my time and did a good job (it’s not exactly brain surgery, either). The bike is still under warranty, and I wonder if something is fundamentally wrong with the shock. Any ideas on what the problem might be?

Thankfully the lingering rear shock issue is not enough to keep me off the trails (for now), but I’d like to get to the bottom of it.

Now, finally, I get to ride again! The trails are calling… 🙂

John Stone Fitness Comments

2 Responses to “Fuel is ready to roll; Rear shock still losing pressure, thoughts?”
  1. Three things to check John.
    1.) Check that the air valve is tight, the part that screws into the shock body. I have seen these go bad. You need a schrader valve tool which you probably have. You can buy the valves at any automotive store, I believe they are sold by “Slime”.
    2.) Air can is not tight.
    3.) Are there any nicks or scratches on the shock stanchion? These will nick the new seal and cause a leak.

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    • Thanks for the ideas, Craig. The stanchion is buttery smooth and flawless, and I tightened the can by hand very snugly. The valve is an excellent thought, and I have some spares (and the tool). I’ll swap that out and see if it helps!

      BTW, after today’s ride it was down to 150 PSI again (from 180).

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