Thanks Kai,
I can do a fair amount of cleaning but I’m a bit dubious about taking off the chain and doing the rear derailleur. If I take those off then they need to be set again to align with the shifters and tht don’t they? I remember trying to do that once years ago and messed it up royally.
is wd40 any good for lubricant or do I need a particular kind?
thanks
james