If this happened on school property then by all means notify your parents, the school administrators and the police. As the man said, what happend to you is assault, and a felony. Even if you and the bike are not legal that does not give anyone the right to be that offensive. You have good grounds for filing charges but you'd need to speak to an attorney about a lawsuit. Go see the principle, tomorrow, first thing. I certainly hope you can positively identify your attacker. If not you'll need witnesses.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"