Speed Control (Rear) - D4+ 4.0 Plug In (New Generation)

Replacement Rear Electronic Speed Controller (ESC) for RoadRunner D4+ 4.0 Electric Scooter (New Generation Plug-In Model) Power up your ride with this plug-in rear speed controller, specifically designed for the RoadRunner D4+ 4.0 (New Generation). This OEM-spec ESC regulates power flow to the rear motor, ensuring smooth throttle response, stable acceleration, and improved ride dynamics. The plug-in design allows for fast, hassle-free installation with minimal wiring required. Features: Compatible with RoadRunner D4+ 4.0 (New Generation Plug-In model) Controls power delivery to the rear motor OEM-grade plug-in ESC for simple, tool-free installation Restores smooth throttle and balanced rear motor performance Ideal for fixing rear motor faults or controller failure