I have an '06 synapse. I was told there is no way to put a rack on the back with panniers and that I should get a trailer instead.Any suggestions? Also the tires are hutchensons 700x 23c. I want to take a trip 3 states away .Any feedback on trailers or recommendations would be good.Everything is stock.

Why couldn't you use this? As long as your load was less than 25 lbs.

http://www.performancebike.com/shop/profile.cfm?SKU=19330&subcategory_ID=2325