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

Replacement Front Sinewave ESC for RoadRunner D4+ 4.0 Electric Scooter Get ultra-smooth throttle control and enhanced ride dynamics with this front sinewave speed controller for the RoadRunner D4+ 4.0. Engineered with sinewave technology for quieter motor operation and superior torque response, this OEM-spec controller is ideal for riders looking to maintain or restore their scooter’s premium performance. Features: Compatible with RoadRunner D4+ 4.0 electric scooter Sinewave controller delivers quieter, more responsive power Replaces factory-installed front ESC OEM-grade component ensures seamless integration and dependable function Perfect for repairing controller faults or upgrading for smoother control