Ключевые слова: alloy, bicycle, bike, black, cassette, chain, chainring, chrome, circle, closeup, component, cycle, cycling, derailleur, drive, equipment, gear, gearing, gearshift, gearwheel, group, iron, machine, macro, metal, metallic, mountain, mtb, part, pinion, race, rack, rear, riding, ring, rings, sharp, shiny, silver, sports, sprocket, stainless, steel, technology, teeth, transport, transportation, vehicle, wheel,