I can't comment on early Centri machines as the Evader is the first Centri I have owned. I cannot foresee any issues with the reliability of the machine though. I use the machine well below it's recommended max voltage and there is nothing physically connected to the motor to cause stress or drag, it pretty much just spins along freely. One would have to think it would take a hell of a long time to burn a motor out that is basically running stress free. Same applies to a motocross bike, don't be riding it around bouncing off the rev limiter all the time haha.