The Power Pony has a do not exceed weight limit of 200 pounds and no limit on height. As to age, we don't have a published age limit for the Power Pony as we have kids of all ages including adults that act as kids riding the product. If they are old enough to reach the pedals, we leave the decision to the parents. Please remember that the Power Pony is intended for use only by persons who are, at a minimum, completely comfortable, and competent while operating the product.