blue cassette chain chainrign circle concept crankset cycle fork game handlebars land leisure miniature model object pedal play quality ring road scale sky spoke spokes sport stone three toy transportation tricycle wheel wheels bicycle bike crash helmet cycling cyclist energetic energy environmentally friendly fit fitness helmet movement moving on the move pedalling pedals pushbike safety safety helmet senior senior cyclist transport travel travelling white asphalt city direction drive forward fun girl horizon joke jokin kid lane line marks paint path roadside route sign signal smile smiling street symbol track traffic urban way advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful caution communicating communication cyclists informing lookout observant pedestrians risk risks share sharing signs walk walkers walking warning watch watch-out