Thule Range Hitch Rack - 4-Bike 2" Receiver Black. The Thule Range is specifically designed to handle the tremendous forces on the back of an RV/travel trailer this carrier is durable protective and secure.Bikes are safe and secure during transport thanks to 7” of spacing between each bike and integrated anti-sway cradles.Compact cradle design accommodates wide variety of bike sizes/frame stylesEasily fold down bike arms when rack is not in use