Get a trailer with 15" wheels. Anything smaller than that has too much rotation to it (the wheels that is) and wears out wheel bearings much too fast. Having a trailer wheel bearing seize up at freeway speeds can ruin your day, don't ask me how I know <img src="/forums/images/graemlins/notooth.gif" alt="" />...

Also, for carrying bikes, look for something with a removable ramp. I've carried up to six bikes on my trailer (6.5 X 12) and the ramp was an invaluable investment.

I would expect that you could get into a nice trailer for about $650 to $800, new, out the door. Those are AZ prices BTW.

Mike