The MicroViper R is very powerful for it's small size, it has been designed to run with motors up to 380 size, making it a perfect alternative or upgrade for any 1/18 or 1/28 scale RC car! It has no 380 motor limit meaning you can use any 380 motor you want and not worry about it! The MicroViper R, like it's bigger brothers in the Viper range, is packed full of features, including motor short protection, motor stall protection, adjustable brakes, adjustable reverse including reverse disable, built in failsafe and is also 100% waterproof.