My son is Autistic and I just could not get him to try to ride his bike without training wheels. He had become to tall to ride any bike alone with training wheels on it. I like to ride my bike to the gym in warm weather and he loves to go the gym with me as was upset when I would ride my bike and he had to miss out. I also wanted to share all the awesome bike trails we have in our community. I discovered this and we both just LOVE it. It is VERY easy to use, connect and disconnect, folds up to store. Rides smoothly and it turns easily...that was a concern for me. He absolutely LOVES this. The first time we took it for a ride, he began to scream, "LOOK AT ME! LOOK AT ME! I'm a big boy!!!" We spent the summer riding this as much as possible and it helped give him the confidence to finally try riding a bike on his own...HUGE DEAL in our world:) Amazing product!