16
It shall not be lawful for more than one person in addition to the driver to be carried on a two-wheeled motor cycle, nor shall it be lawful for any such one person to be so carried otherwise than sitting astride the cycle and on a proper seat securely fixed to the cycle behind the driver's seat; and if a person is carried on a cycle in contravention of this section, the driver of the cycle shall be guilty of an offence.