Ключевые слова: adult, adults only, adventure, athlete, bicycle, blurred motion, closeup, color image, cycling, day, determination, dirt, dust, effort, endurance, exercising, extreme sports, extreme terrain, full length, headwear, healthy lifestyle, helmet, horizontal, leisure activity, lifestyles, males, men, mid adult, motion, mountain, mountain bike, mountain biking, mountain range, one person, outdoors, people, protection, recreational pursuit, riding, side view, speed, sport, sportsperson, stunt, sunglasses, sunlight, vitality, white people, women,