This weekend – three weeks after he turned four – we took the training wheels off William’s bike. It was one year earlier than we did with Emma, but he had been tearing around on the training wheels for a while and something about the way he rode made us feel like he might be able to handle riding on two wheels. So we strapped on the gyrowheel and he took off. At first he was frustrated but after about four tries he was able to ride by himself and eventually the battery on the gyrowheel died and then he was REALLY riding by himself. This was taken in the park on the day after the wheels came off: