RJ got an Amtryke bicycle two years ago. It is an adapted tricycle that a child can propel with arms, legs or both. It also has a parent push bar for assistance. Two years ago, RJ was 3 years old and he was measured specifically for this bike by his physical therapist. According to Amtryke's guidelines he should have fit in to this particular model and size of bike. For the first time, this year, he just fits in it's smallest setting. Look at what he can do!