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Discussion Starter · #1 ·
Having some symptoms on my Fox fork that I can't seem to find any info on.

Fork is a Fox F120 RL, came OE on a 2010 Trek EX8. It started after I changed the fluid. Best way to describe it is after the bike sits for a while, i.e. overnight, when I go to cycle the shock, I only get about 25% travel at first with an abrupt stop. I keep cycling it and the travel gradually increases to full travel after several cycles then performs normal.

I put what I thought was the correct amount of fluids back in (160cc damper side, 30cc bottom of air side, 3/4 pillow pack of float fluid on top of the air piston). With no air in the chamber I also get full travel no problems.

I have only been on the trails twice since I changed the fluids because of the snow and ice hitting the midwest so I haven't really "broke in" the new fluids.

Any thoughts? Does this sound normal???

Thanks guys.
 

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Just a thought.... could during reinstallation of internals the rubber o ring came off damper or air spring seal and fluid getting past. Just changed fluids and seals in mine and happen to see the o ring on one side had rolled down past where it should have been when I was installing. I'm not a mechanic but thats the first thing I thought of. With that said I have not ridden mine since working on it either. I'll check it tonight.
 

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timmaayyy said:
Best way to describe it is after the bike sits for a while, i.e. overnight, when I go to cycle the shock, I only get about 25% travel at first with an abrupt stop. I keep cycling it and the travel gradually increases to full travel after several cycles then performs normal.
I've heard of this if the bike is stored upside down, but that doesn't explain why it only started happening after you changed the fluids.
 

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Checked mine last night and seems fine. Getting full travel.
 

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Discussion Starter · #6 ·
bad mechanic said:
What, exactly, did you do to the damper during service?
Nothing really. Just opened the valve at the bottom to pump the fluid out per the Fox site.

I called Fox and the guy I spoke with said it sounded normal as long as I'm getting full travel after a few cycles of the fork.
 
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