Stromberg Carlson Bike Bunk. The first trailer tongue cargo carrying system! Adjustable to fit most A-frame trailers on the road today. Up to 100 lbs can be supported and your tow vehicle suspension guarantees this is the softest riding area on your trailer. A raised receiver on the A-frame is the perfect place to put your bikes. Bike Bunk allows any bike rack designed for a 2in receiver to fit. Your application will be determined by turning radius and positioning of the rack.