Motor Trike GTX Sportster IRS Trike Conversion Kit
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
Traditional Tricycle Conversion Kit w/ Li-Ion Battery | E-TrikeKit™