YES !! He made it

This is how Vincent learn to ride bicycle without the help of a pair of supporting wheels. First, we removed one of the supporting wheel, and let him cycled until we saw he could do it without the wheels. Then, we removed the only supporting wheels on the bicycle there. At first, he hesitated for a while. But when he find out himself can actually ride, there he goes, dashing out as fast as a wild horse.

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No struggles, no protest, finally, he mastered this life-long skill in his own pace when he was 5 yr 8 mth old. Well done, son.