Ключевые слова: abstract, alloy, arrangement, background, bicycle chain, bicycle gear, bundle, chain, closeup, color image, complexity, connection, consistent grease, contrast, cycle, cycling, detail, dirty, element, equipment, gear, grease, grey, horizontal, industry, iron, link, link chain, machine part, macro, metal, motor, nobody, old, part, pattern, roller, set, shape, shiny, silver, steel, technology, texture, transportation, used, vehicle part, wallpaper pattern, wheel,