Suspension forks are pretty complex things and there's a lot that could go wrong. Regular fettling keeps them sweet, though. Thankfully most forks don't need as rigorous a maintenance schedule as they used to (when it seemed like you had to strip the whole thing down weekly) but it's still well worth spending a bit of time on them.

We haven't gone the whole hog here - stripping apart the actual damping mechanism will be an article into itself. Partially because it's quite involved, partially because we didn't want to hit you with too much info at once but mostly because we could lay our hands on a critical tool this morning... We're looking at a RockShox Psylo SL, although the principles are common to several other forks.

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