Hi Parents.
Below is a simple sizing chart that will answer the many questions we receive about what ages the bike is suitable for.
We find that Asian children tend to be a touch smaller than their American friends and regularly see 6 year olds riding the Strider with a few simple modifications. Extending the handle bars is a good trick to getting and extra year out of the bike.
Once your child is confident at balancing you can add a two wheel pedal bike, but you will find the children prefer their Balance Bike as they are a fantastically light and simple for the children to ride around on.
For children 6+ or for kids who have completed our Level 2 Certificate Course, you can get Private 2 wheel pedal bike lessons from us too. Here is the details. http://www.riderlearning.com/learn-to-ride-class/