Originally Posted by
fietsbob
with a chain tool you can add half links .. as I'm supposing this is a single speed ,
they[kmc?] make half links in 3\ 32 and 1/8" width,
if you leave the end of the pin still in the back outer plate of the chain, you can
press the pin back in.. in the future , don't push them pins, all the way out.
WARNING- this advice is perfectly OK and correct when applied to single speed bikes, but totally inappropriate and possibly dangerous when applied to multi speed geared bikes with Hyperglide or any brand of gated shifting, as the OP's bike seems to be.