Buy Four Wheelers What Type Of Four Wheeler Should I Buy My 7 Year Old?

What type of four wheeler should I buy my 7 year old? - buy four wheelers

It has a Power Wheels battery operated four wheels, which he loves, but is not strong enough to up and down that court. Well, it weak, but come very slowly. I get something that he can walk around our back yard is not fast, but in motion. I would like to retain a reasonable range. What would you suggest? Thank you!