So I was sitting watching Nathan ride his scooter, and he would just coast up and down the driveway, and so I had Rich take the training wheels off his bike, and you could hardly tell he hadn't done this before. Within minutes, he was starting and stopping himself. I guess I couldn't expect anything less from a kid who was riding a bike at 23 months old! So this is his second attempt, and as you can see, he has it mastered.