Simple Kid bike
For my son's 5th birthday, my father (Jacques, not me) built a front wheel recumbent bike. Kids are so quick to learn. My son was able to ride with one hand after only 5 minutes. He will need more practice to ride on a straight line when pushing hard on the pedals but he is so happy with his 'vélo couché'. Feel free to copy this bike for your kids if you. A second bike is undergoing surgery right now.