Amazon.com : Thule Apex XT Hanging Hitch Bike Rack, Carries 2 Bikes, Perfect for Traveling with Multiple Bikes - Quick, Tool-Free Installation, Suitable for a Wide Variety of Bike Sizes and Frame
Thule Trailway 4-Bike Hitch Mount Bike Rack, Fits 1-1/4, 2-in Receiver, Black | Canadian Tire
Thule DoubleTrack 2-Bike Hitch Rack - Wheel & Sprocket | One of America's Best Bike Shops