Bicycle Top Tube Adapter : 5 Steps - Instructables
Amazon.com : Bike Bicycle Top Tube Cross-bar Frame Adjustable Adapter for Bike Car Rack or Home Storage Stand - Great for Y-Frame Kids Ladies Dual Suspension Cruiser Small Mountain Road Bikes Capacity
TubeTop – Yakima
1 set Universal Adjustable Cross bar Top Bike Tube Frame Adapter / Black | eBay
Amazon.com : Bike Bicycle Top Tube Cross-bar Frame Adjustable Adapter for Bike Car Rack or Home Storage Stand - Great for Y-Frame Kids Ladies Dual Suspension Cruiser Small Mountain Road Bikes Capacity
Rhino-Rack Bike Frame Adapter Bar - NAPA Auto Parts
Retrospec Top Tube Frame Adapter – Plenty of Bikes
Bicycle Top Tube Adapter : 5 Steps - Instructables