Chang International Service (CIC) takes a construction budget of 2,000 baht, located on an area of more than 1,200 rai, with a distance per round 4.554 km. clockwise running direction It consists of a total number of 12 curves, 7 right and 5 left curve, which can hold up to 50,000 spectators. The highlight of the field is that the audience can see every part of the track. when on the Grand Stand to increase the pleasure of watching a motorsports game by the highlight of the track There are 5 points: 1 kilometer long straight, which can make up to 315 kilometers per hour in a trolley car speed and 300 kilometers per hour in a superbike motorbike. This point is a challenge for the driver to find a braking point to overcome.