Motor has been modified to enhance performance. It has a 12.5:1 JE dome top piston, stage 1 hotcam, new stock bore jug, port and polished head. It has a full Yoshimira exhuast system, set of nerf bars and a full set of brand new paddle tires (used only once). It has dirt tires on it but they are pretty worn. Will need replaced soon. Runs on racing fuel.