Originally Posted by
Altbrewer
When you get a new chain, you will have to shorten it to match your old chain. Just line it up alongside the old one and remove the excess links on the new one. You will need a chain tool for this.
No, that assumes the old one was properly sized, and in any case one has to match link to link, not total length. Just do a search for
replace bike chain - Sheldon and Park Tool sites are preferred.