You don't need a trailer to haul your ATV or 50" Side-X-Side to the out doors. Mad-Ramps allows you to load your machine into the bed of your truck with the weight supported by the Mad-Ramps and the bed of your truck. I have sold my ATV and Side-X-Side and no longer have a truck. These work great and are easy to install. The Mad-Ramps fit any standard pickup box. These Mad-Ramps will hold a standard ATV or 50" machine. They will NOT hold any machine over 50". The Mad-Ramp retail for $1299.00. Asking $600 OBO.