In order to use a hitch-mounted bike rack like the Swagman Original # S64152-2 that you were looking at while towing a vehicle, you will just need to add the Roadmaster Dual Hitch Receiver Adapter # RM-077-4. This adapter will slide into the 2 inch hitch receiver on your RV to provide two, 2 inch receivers on the other end. The bottom receiver can be used for your Blue Ox tow bar, while the top receiver can be used for a hitch-mounted accessory like the Swagman Original bike rack.
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