Originally Posted by
13ollocks
there's no stretch in the world that will account for an extra link over the length of a chain

bike drive chains don't "Stretch", ever... the pins and bushings wear.
and a half inch is not an uncommon amount of cumulative wear in an abused, un-lubed chain.
i've found nearly that much slop in a "new" Bell branded chain before.
that's why i always advise Counting the Links, not "side by side" comp.