Ключевые слова: 3d, art, bicycle, bike, cassette, chain, chainring, chainwheel, circle, cog, cogwheel, component, cut, cycle, design, disk, drive, equipment, gear, gearing, gearwheel, icon, illustration, iron, isolated, machine, mechanical, metal, metallic, mountain, object, origami, paper, paperart, papercut, part, power, spare, speed, sport, sprocket, steel, technology, tooth, transmission, transport, vehicle, volumetric, wheel,