RAD POWER BIKES RADRUNNER 2 Power Radrunner 2 Throttle Not Working

Twist Throttle Assembly

The throttle contains a Hall Effect sensor and a magnet that translates mechanical rotation into a 0-5V signal. Environmental exposure or internal fatigue can cause the sensor to drift or fail, resulting in a 'dead' response where the controller receives no voltage change. This is the most common component-level failure on Rad models exhibiting isolated throttle loss.

Brake Lever with Integrated Cut-off Switch

Rad Power Bikes utilize a safety interrupt circuit where the brake levers contain a reed switch or sensor that immediately cuts power to the motor when pulled. If the switch is mechanically stuck or the sensor has failed in the 'closed' position, the controller will ignore throttle input to prevent the motor from fighting the brakes, effectively disabling the throttle.

Motor Controller

The controller is the central logic unit that processes throttle signals; if the internal signal-processing circuit or the throttle-specific input pin on the PCB is damaged (often by a short in the wiring harness or thermal stress), it will fail to engage the motor despite receiving a valid signal from the throttle.