Atomic speed 1:10 4WD RC off road buggy RTR + 0.18 - (+-2.9CC) engine - 85/90 kmph (+-55 Mph) Atomic Speed 1:10 off road buggy RTR (Small brother of the famous 1:8 bazooka speed) includes .18 class engine (about 2.9CC) top speed 85/90 kmph (+-55 Mph) Length : 400mm( 14") Width : 250mm (10") Height : 160mm( 6.4") Wheelbase : 275mm (11") Round Clearance: 26mm Gear Ratio: 6.46:1(H), 9.15:1 (L) Engine : .18 (+-2.9CC) SH High Quality Engine Diameter of Wheel: 86 * 32 mm (Front), 86*40 (Rear) Thread : 185mm Speed:85/90 kmph (+-55 Mph) weight: fully packed 3300g include pistol style radio controller No glow starter included