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My shock compresses a bit too quickly though about 1cm of travel and then rebounds with an audible clunk which can easily be felt when riding. The rebound adjuster still does its job through the rest of the travel. A local LBS says it is a rebound issue, but I'm not so sure.
I've taken the air can off, and all looks ok. Also deflated and reinflated.
Any ideas?
Ps, what does the o ring and thin washer on the shaft do?
the o ring is a sag indicator - not sure what you mean by thin washer.
are you sure the eyelet bushes are in good order?
generally if there is nothing visual then it's off for a proper service as the internals will be causing the problem - non user serviceable area.
How old is it and has it been serviced before?
Sounds like some of the damping oil has been lost over time, thus at the start of its travel there is air rather than oil in damper.
willber, the OP is talking about the o ring and thin metal washer on the damper shaft (internal), not the shock shaft (external). I think the o ring acts as a bottom out stop and the washer just stops it from forcing its way into the damper, maybe?
Thanks guys, that would make sense, even though I havent noticed any oil loss. Another btw question, if oil deals with the damping, what does the nitrogen do?
It's under warranty, but I'm in the States on a bike trip for 2 more weeks, so not ideal. Weirdly, the Fox rep is in town today.