Riders are paced in the early laps by (and required to stay behind) a derny motorcycle, which slowly increases the speed of the race from 25km/h to about 50km/h and leaves the track with about 600-700 meters remaining.
Riders are paced in the early laps by (and required to stay behind) a derny motorcycle-700 meters remaining. A derny motorcycle slowly increases the speed of the race from 25km/h to about 50km/h. A derny motorcycle slowly leaves the track with about 600.