Six years commuting on this bike without a puncture and finally the inevitable happened. Because of the age of the tyres I decided to replace them too, but have Alfine hubs with disks (and mudguards and pannier) so it is not a straightforward task. I decided to go the whole hog and give the chain a proper, off the bike, going over (may replace entirely) rather than the usual in-situ clean too. Questions: 1. The chain is a KMC Z Narrow which seems to have some sort of easy remove link that I can't for the life of me work out. One link, on one side only, has an 'O' link which doesn't seem to be bevelled on the inside to push the links together and has no obvious means of sliding off. Easier just to put a link removal tool on another part of the chain? 2. If the chain doesn't buff up I may just remove it. What is the best for an 8 speed hub gear? 3. To save this being a problem again, would people think worth spending the extra for some sort of 'quick link' for easy removal? And if so which one (in light of qusetion 2)? Many thanks for any help.