Air pumps for two-wheeled motor vehicles or bicycles; Anti-skid chains for vehicles; Antitheft devices for vehicles; Brake systems for vehicles; Braking systems for vehicles and parts thereof; Bumpers for automobiles; Chains for cycles; Direction signals for vehicles; Electronic devices for disabling a vehicle in response to a measurement of alcohol in excess of a safety threshold in the blood of its purported operator; Electronic stability system to allow better control and maneuverability o...