High-speed track racing is also called mud racing. The route selected for mountain cross-country race usually consists of high-speed downhill section, climbing section, country section, gravel section, forest section and short asphalt section. Rule: No matter what the ground and climate conditions are, it is required that 100% of the track can ride. 1 modern high-speed track race was held in Australia in the 1920s, while 1 international high-speed track championship was held in 1936. Other forms of motorcycle races (such as motorcycle cross-country races) are held on "natural" outdoor roads, while high-speed track races are held on elliptical tracks-each race * * * takes 4 laps, and 4 runners skate at sharp turns. Because its design top speed is 327KM/H, there are still dozens of kilometers from the top speed limit of 375, but the difficulty is in the forefront of 19 track.