TRX-4M BRUSHLESS SYSTEM This is the Traxxas TRX-4m Brushless Power System TRX-4mBrushless Power SystemThe TRX-4M Brushless Power System gives you up to 50% more speed and more crawling torque and precision than brushed power systems. Rip wheelies in your monster truck or navigate a technical crawling course in your custom High Trail rig. The new TRX-4M Brushless Power System gives you the best of both worlds! Features Field-Oriented Control (FOC) for superior low speed torque High-power 3350 Kv brushless outrunner motor Brushless ECM compatible with 2s TRX-4M iD LiPo batteries Retains all standard ECM features including Pro Scale lighting controls Integrated 3-channel receiver works with Traxxas TQ and TQi transmitters Brushless Outrunner Motor 3350 Kv Field-Oriented Control (FOC) Laser-etched motor can Includes 11-tooth brass pinion gear High-torque output Brushless ECM Compatible with TQ and TQi transmitters Use with 2s TRX-4M iD LiPo batteries True plug-and-play compatibility Two servo output channels Two Pro Scale lighting ports Three drive modes: Sport (Fwd/Rev/Brake trail running) Trail (light trail braking) Crawl (hill hold) Easy InstallationThe TRX-4M Brushless System uses the same mounting points as the standard system for quick and easy installation—no modifications required!