G&G Hulk 17K Motor Short Type.
 
This particular gives high-revolutions capacity with the ability to develop important torques like the commercial High Torque (thanks to which the battery consumption is much lower than the High Speed competitors).
 
Features:
IFRIT 17000RPM engine
Model 17K 
Short shaft version
NEODIMIO magnets
Thrust: 3Kg / cm
Balance SUPER HIGH TORQUE & SPEED