Frank_W wrote:
What's the legal penalty for riding without one where they are required?

This is the law for Ohio....

Motorcycle helmet law:
4511.53 Operation of bicycles, motorcycles and snowmobiles.

( ... No person who is under the age of eighteen years, or who holds a motorcycle operator’s endorsement or license bearing a “novice” designation that is currently in effect as provided in section 4507.13 of the Revised Code, shall operate a motorcycle on a highway, or be a passenger on a motorcycle, unless wearing a protective helmet on the person’s head, and no other person shall be a passenger on a motorcycle operated b(D) Except as otherwise provided in this division, whoever violates this section is guilty of a minor misdemeanor. If, within one year of the offense, the offender previously has been convicted of or pleaded guilty to one predicate motor vehicle or traffic offense, whoever violates this section is guilty of a misdemeanor of the fourth degree. If, within one year of the offense, the offender previously has been convicted of two or more predicate motor vehicle or traffic offenses, whoever violates this section is guilty of a misdemeanor of the third degree.y such a person unless similarly wearing a protective helmet. The helmet, safety glasses, or other protective eye device shall conform with regulations prescribed and promulgated by the director of public safety. The provisions of this paragraph or a violation thereof shall not be used in the trial of any civil action.



And this is the crime committed if you violate that law....


(D) Except as otherwise provided in this division, whoever violates this section is guilty of a minor misdemeanor. If, within one year of the offense, the offender previously has been convicted of or pleaded guilty to one predicate motor vehicle or traffic offense, whoever violates this section is guilty of a misdemeanor of the fourth degree. If, within one year of the offense, the offender previously has been convicted of two or more predicate motor vehicle or traffic offenses, whoever violates this section is guilty of a misdemeanor of the third degree.


And is punishable by....


Fourth degree misdemeanor is not more than 30 days imprisonment and a $250.00 maximum fine.
Third degree misdemeanor is not more than 60 days imprisonment and a $500.00 maximum fine.