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