The Traxxas Stampede 4x4 VXL is a ready-to-run monster truck that comes with a pre-installed brushless motor and ESC. It also includes a TQi radio system with transmitter, receiver, and servo. The TSM (Traxxas Stability Management) system gives you added confidence behind the wheel, whether you're carving through a turn, ripping through the whoops, or blasting over jumps.