Which size kids bike should I get for my 3/4/5/6/7/8 year old?

 

The key indicator is your kid's height, If your measurements fall in two sizes on the chart above, In 90% cases, we will recommend the bigger size, which will last longer.  However he/she might not touch the ground at the very beginning, training wheels is needed during this period. Compare the (inseam+foot length) with the saddle height(adjustable).     

And if your little one is not that adventours, or if he/she doesn't know how to ride, then the smaller size will be easier to control.