Black Trike Conversion Kit for 20 inch Bicycle. Comes with Two 20 inch Hollow-Hub Steel Wheel 72 Spoke. Tricycle, Trike, three-wheel bike conversion kit - Walmart.com
Harley trike conversion kit | eBay
Trike+Plus Conversion Kit CD | eBay
www.Harleytrikes.com sells do it yourself independent suspension trike conversion kits for Harley Davidson Motorcycles.