Also, remember that airlines are absolutely notorious for saying one thing on the phone or the web, and another at the ticket counter when you have no choice. The best bet is to get the information either in writing from an agent (unlikely) or to have them explain the fare rules in such a way that you can direct a ticket agent to find the same solution when you're at the counter. Also, it's a good idea to call the airline back before you leave just to make sure. I'm in a similar situation for my trip to Europe this summer - the bike is supposed to fly free. I'm crossing my fingers, but I'm also going to call the airline again to confirm it before I leave.