I have a DHX air on my specialized enduro with the factory set nitrogen charged boost pressure so effectively a DHX 4.5. Out of the box this shock had a slight squelch to it on the initial stokes when you get on the bike then went quiet for the remainder of the ride. Over time this squelching got louder and took longer to clear until the damping started to get a bit hit and miss.
I'm led to believe that this is cavitation within the shock where air or nitrogen has got into damping circuits where it is not supposed to be. I got the shock rebuilt at the start of this year and all was well with it with little noise on initial use. Over the course of about 3-4 months the squelching had come back and the shock seems to be getting worse at the same steady rate as before.
I know that TF refuse to service this shock and wondered if this was due to a design fault which leads to this sort of poor performance/reliability. I'm not really wishing to pay for a full rebuild once/twice a year to keep it working correctly. I am happy doing air can services and my fox triad on my 04 stumpjumper has never required rebuilding, makes no stupid squelching noises and damps consistantly.
My question is - do I have a bad shock or have other people experienced this?
