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