Ключевые слова: alloy, assembly, background, bicycle, bike, chainring, chrome, circle, close, closeup, cogs, component, crank, cycle, cycling, detail, equipment, gear, gearing, groupset, hub, isolated, machine, maintenance, mechanical, metal, metallic, mountain bike, mtb, part, rear, repair, rings, rotation, shiny, silver, speed, steel, tooth, transport, transportation, vehicle, wheel,