Amazon.com: Towever 84131 Trailer 2 inches Dual Hitch Receiver Adapter Extender for Towing and Riser for Bicycle Rack, Extra Long Towing Accessories : Automotive
Roadmaster Dual Hitch Receiver Adapter, 2" or 4" Drop/Rise Roadmaster Accessories and Parts RM-077-4
Can the Roadmaster Dual Hitch Receiver Be Used For a Bike Rack and Cargo Carrier | etrailer.com
Double your towing capacity with the Class II, 2" MPG544 Double Hitch Receiver. Allows the towing of a Malone Trailer, and, installation of a hitch mounted bike rack at the same time.
Advantage SportsRack GlideAWAY2 Deluxe Hitch Mounted 4 Bike Rack 2110 - The Home Depot
What to Know Before Purchasing a Dual Hitch for your SPACE Trailer – SPACE™ Trailers