Take bikes on vacation, your family will thank you! The Trailhead 4 RV is specifically designed to take the abuse the travel trailers and 5th Wheels exert on bike racks for our RV Approved rating! For those looking to take their bikes on vacation with the family, the Swagman TRAILHEAD 4 RV Approved hitch mount bike rack fits the bill perfectly. Capable of carrying up to 4 bikes of 35lbs each mounted to the back of an RV trailer, you are sure to make plenty of two wheeled memories. For those with odd angled top tubes, DLX Bar Adapter (64005) can be purchased to fit ladies bikes or step-thru designed frames. The triangular bike cradles combined with the rubber straps help eliminate most of the front to back bike sway found on other hanging style racks.