The XMC300R electronic speed controller is bi-directional and is one of the world’s smallest ESCs and has been specially designed for the XRAY M18 and M18T. A high competition speed controller suggested for high competition – a “must have” for serious racers. Based on SMD technology, the result is a very small high-quality electronic device. This forward-and-reverse ESC features proportional throttle, and reverse, and battery elimination circuitry (BEC).