Remember the tick...tick..tick? Well, it's back. And I suspect the left pedal. I've been working it hard for two years, and even a bit of googling suggests I should have 're-greased' it a fair while back. But I can't see any way into the bugger. Do all pedals come apart, or are some 'sealed units' that you just have to dump when they wear out? (They're either Ritchey or Cannondale SPDs - I'm not sure which.) Thanks if you can help.