Bicycles, collapsible bicycles, electric bicycles and electric collapsible bicycles, and structural parts thereof; frames, handlebars, handlebar stems, derailleurs, gears, saddles, saddle covers, saddle bags, seat posts, seat tubes, pedals, cranks, tires, wheels, tubes, spokes, pumps, forks, carriers, bicycle mud-guards, chains, chainguards, hubs, brakes and levers, toe straps and clips, luggage racks adapted for bicycles, bicycle bells, bicycle stop stands, rearview mirrors, tire patches, baby carriages, bicycle canteen racks, bicycle tire mending devices, bicycle holders for vehicles, bags adapted for bicycles, bicycle handle-bar grip covers, trailers, baskets adapted for bicycles, bicycle protective wheels, wheel guards(cover), bicycle shock absorbers, and other accessories for bicycles, collapsible bicycles, electric bicycles and electric collapsible bicycles