McKay riding a 2 wheel bike

So McKay has been riding a bike with training wheels for a few weeks. The other day when we went for a bike ride I noticed that he was doing a good job balancing, so when we got home I got out the small 12in bike our neighbors lent us with no training wheels and that little guy just took off. I could not believe it! So far he is our youngest to learn, he will turn 4 in a couple of weeks. But he was so proud of himself