山地车
4.Mountain Bike: Riders are required to wear ASTM, ANSI or SNELL approved helmets , ride a mountain bike only and obey the rules of the road.
5.The drop handlebars of the mountain bikes permit a low and comfortable riding position.
6.The two were riding an ATV on Saturday night in Chloride, Arizona when they fell.
7.Two mountain bikers cross the Kennicott River via a hand-drawn tram in Wrangell-St.
8.Nancy：A mountain bike is a sturdy bike with a thicker frame, nars tires than other bikes.
9.Think of Himalayan Mountain Bike tours as if trekking-by-bicycle except you get to cover 3 or 4 times the territory in same time while maximizing your vacation time and holiday experience.
10.Terrain: riverbed - loose sand, pebbles and shrubs. Use mountain or cross bike with puncture-resistant tires (or extra layer of inner tubes). Flats are very likely!
