I have one of these, I can hold 4 bikes and tow my trailer with 3 kayaks loaded on. It's built tough and has lasted me about 12 years, I use my bike and leave it on all bike season and in to the first part of winter. It fits on my truck perfect and has a 2 inch ball along with a 2 inch hitch. I think I paid $130 at Cabelas........
http://www.swagman.net/products/towi.../original-4-3/