Ключевые слова: beige, bicycle, bike, cassette, chain, chainring, chainwheel, circle, cog, cogwheel, component, cycle, design, disk, dots, drive, equipment, gear, gearing, gearwheel, grey, icon, illustration, industry, iron, isolated, machine, mechanical, metal, metallic, mountain, object, part, power, random, spare, speed, sport, sprocket, steel, symbol, system, technology, tooth, transmission, transport, transportation, vehicle, wheel,