What kind of people are on a riders team? Well there is usually a personal mechanic, suspension and engine specialist. There are also test riders and mechanics who work to get the best out of the bike. There are PR staff as well as riding and personal trainers.
How are the tracks built? Dirt Wurx is the name of the company who have been building supercross tracks for more than ten years now. There are hundreds of truckloads of dirt piled onto the stadium floors and then they are shaped to make the track and jumps. When the race day is over, they usually have all the dirt taken away within 24 hours and it is reused at the next track.
That's all the questions I have to answer for this week.