I say this really depends on the kid some kids learn quick and are taught at a early age while for some struggle and take more time into learning how to ride a bicycle.
Riding a bike is a lot of fun and great exercise for kids. Learning to ride a two-wheeled bicycle without training wheels is also an important milestone. Children usually learn to ride a bike sometime between the ages of 3 and 8, with an average of just over age 5.
