| 48" boy is riding a 18" bike with training wheel. Ahould he ride 20" or 22" bike? I need to buy a bike for younger child with 38" height, and I think she can take the 18" bike, rifgh? She has no problem riding 18" bike except her foot can't reach floor. |
It isn't as simple as height, you also need to factor inseam as well. If you child has short legs, they will need a smaller frame- long legs a larger one. |
48" boy is almost 8 year old with inseam 22". 41" girl is 4 year old with inseam 18". Both are lightweight in weight |
Here is a good chart but I would also double check with the bike manufacturer as there are differences in the amount a seat can be adjusted. Looks like your son would need a 20" and daughter would be good with a 16" Kids Bike Sizes Chart Wheel Size Age Inseam 16″ 4 – 6 years 16″ – 22″ 20″ 5 – 8 years 19″ – 25″ 24″ 8 – 11 years 23″ – 28″ 26″ 10 + years 25″ + |
| 48 sounds good |
| Try 46-50 range |