Robust speed monster truck with 4S brushless drive. Powerful 3668 2400KV brushless motor with Spektrum Firma 120A V2 smart controller. Enhanced chassis with metal center differential. Aluminum oil pressure shock absorbers. Maximum speeds of over 85 km/h possible with a 4S LiPo battery. Wheelie bar with rubber tires. Spektrum SLT3 remote control with SR315 dual-protocol receiver. ARTR - Almost Ready to Run. ARTR models are pre-assembled models that are nearly ready to use right out of the box. Unlike RTR models, you will need additional accessories before the model is ready for operation. Monster Truck. Monster trucks are characterized by oversized tires, elaborate shock absorber systems, and good off-road capability. However, the high ground clearance also results in a high center of gravity. Difficulty level: Advanced. You have basic knowledge and possess the necessary experience and suitable tools to correctly wire your model if needed and operate it safely. Brushless motor. A brushless motor is an electric motor without brushes, which, compared to brushed motors, offers higher efficiency, less wear, and lower weight.