An animal and attacker deterrent system to be mounted to a bicycle or to an similar vehicle is disclosed herein. The deterrent system in one example comprises a compressed gas cylinder where the gas includes a chemical animal deterrent and a carrier. In one example the system utilizes a user-actuated valve coupled to the compressed gas cylinder. The actuator for the valve mounted within easy reach of the user (vehicle operator) such as mounted to the bicycle handlebars. The system in one example comprises a short gas conduit having a first end coupled to the user-actuated valve and a second end fluidly coupled to a plurality of mist producing spray apertures.
