Kids Bike Size Calculator Kids bikes are smaller with sturdy frames and thick tires, specially designed for children. They are ideal for riding on flat, paved or hard packed surfaces where the child can focus on riding the bike, instead of navigating the terrain. The simplest style has no pedals and very small wheels. From there, the bikes get bigger, with more features to accommodate the child’s growing skills, coordination and confidence. This calculator will recommend a kids bike size using your child’s age. Rider Information Rider: Child, maleChild, female Age (years):234567891011121314 Required Reset FormKids Bike