27 inch wheels have gone the way of the dodo. Planned obselecence or progress. The same thing happened with 28in and 650's are going that way too. You can still get them, but not in a skittles rainbow of colors.

Get a new set of wheels. I had the same problem with 650's , though I just found one that I wanted, but paid roughly 5 times what I paid for the 700 version.