A robust body incorporating a hybrid monocoque and pipe frame structure, and nitro engine power system makes the 1/8 scale FO-XX 2.0 monster truck one tough mudder. This upgraded model earns the '2.0' in its name with a new 5-link suspension system. Upper and lower link ball joints and lateral rod to regulate movement combine to produce deeper and more flexible suspension for superior rock crawler type performance. The dynamic performance of the FO-XX 2.0 makes full use of the high power & torque of the KE25SP engine on any surface, from rough roads to tarmac. In addition to the transmitter and receiver, the wheels and tires have been redesigned to improve on previous models to deliver superior control and handling. Open the throttle in open space and let the FO-XX 2.0 show you what power and performance this R/C machine is capable of. Simply purchase batteries for the transmitter/receiver, fuel and fuel bottle, plug heater with engine starting tools, and the dynamic performance of this factory-assembled FO-XX 2.0 Readyset is easy for anyone to enjoy. Required For Operation: AA-size batteries x 4 for transmitter Batteries for chassis x 2 (7.2V Ni-MH or 7.4V Li-Po) Super Plug Charger for chassis battery Required For Operation: AA-size batteries x 4 for transmitter AA-size batteries x 4 for receiver Fuel bottle Plug heater Fuel Chassis Technical Data: Length: 545mm Width: 383mm Height: 248mm Wheelbase: 360mm Tread: 312mm Tires (F & R): 155 x 70.5mm Gear Ratio: 25.7/19.8/15.6:1 Weight: 4,200g (approx.) Engine: KE25SP Features: Factory assembled Readyset Features same 17mm hex wheel hubs and nuts as the Inferno series. Radio box protects receiver and battery. Rigid axles for efficient power transfer. Front and rear differential gears provide strength to handle the high power. A large capacity 150cc fuel tank for long run times. Pre-painted body with decals, and resin pipe frame/roof for a realistic look. Syncro KR-331 receiver features failsafe function.