[SpEEdyBL]

Novak motors are more efficient and better motors than the mamba motors. I am sorry, but this is all I hear when I comes to head to head comparison that people have actually witnessed and not speculated. Also, if you are racing, why would you choose a sensorless system over a sensored system, when sensored systems are clearly better for racing? If you go novak, don't get the motor that comes with the XBR sport, because it doesn't have a sintered rotor. May as well get the gtb anyway since it has no motor limit and will run cooler.