I have the cheaper model Alameda trike which can be purchased for $200 or so at Wal Mart stores. My 15 year old daughter has Cornelia De Lange Syndrome, and cannot balance a two wheeled bicycle. The trike we have is a single speed, without rear differential, front rim brake, and rear strap brake. This has 26" wheels, and is an aluminum frame, not overly heavy; has a nice big basket on the rear, also. For the type of riding we do with my daughter (sidewalks, slow speed, rides to the park...etc) this bike works well. She is fairly high functioning for an individual with her condition, and understands how to use the hand brakes when needed. If you are looking for an inexpensive option, I would check this out. We had to special order and assemble the trike ourselves, which isn't too difficult. Hope this helps!