Ключевые слова: 2017, adult, athlete, background, bicycle, bike, biker, biking, championship, competition, crosscountry, cycle, cycling, cyclist, danger, down, downhill, drops, extreme, freeride, helmet, hill, jump, jumps, lake, male, man, mountain, mountainbike, mountainbiker, mtb, outdoor, race, ride, rider, riding, rock, sky, sport, sports, stones, summer, track, trail, wheel, xtreme, young,