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
Best kit bolt on Trike conversions for motorizing? - Motorized Bicycle Engine Kit Forum | Trike kits, Bikes for sale, Trike
Electric Bicycle tricycle Kit 14.5" 350w 500w 30N.M Gear Hub Motor Bicicleta Electricle Wheelchair Tricycle Bicycle With Battery - AliExpress
Electric Tricycle Conversion Kit | Electric Rickshaw Conversion Kit - 1000w 48/60v - Aliexpress
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