Wanted to share this bike info in case in might be helpful for someone. My son has spastic diplegia and he's 9 years old. He was using a bike with training wheels, but never liked it too much, because the training wheels threw him off balance. We looked around for a recumbent bike, but the cheap ones had bad reviews on durability and the next ones up were way more expensive than we wanted to pay. My son's PT suggested buying fat wheels (you can get them online), which are as thick as bike tires but less than half their size in diameter. We bought them for $100 and attached them to his bike...instant success! He LOVES to ride his bike now, and is getting such good exercise. We take him to a walking/bike trail that is long and fairly flat.