How to assemble Dream Bike Tricycle Conversion Kit "English version" - YouTube
Chrome Trike Conversion Kit for 16 inch Bicycle. Comes with Two 16 inch Hollow-Hub Wheel 72 Spoke. Tricycle, Trike, three-wheel bike conversion kit - Walmart.com
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Amazon.com : Chrome Trike Conversion Kit for 12 inch Bicycle. Comes with Two 12" Hollow-Hub Wheel 36 Spoke. Tricycle, Trike, Three-Wheel Bike Conversion kit : Sports & Outdoors