Xnova LIGHTNING Series 4020-1200KV Shaft B (Goblin 500) 

We have spent hours of testing to improve the very well established 4020 series. The result is an even better overall performing motor with extreme low cogging torque and increased efficiency. This all will provide you a cooler running motor and also more consistent power delivery over the full flight. The Xnova V3 lightning series is the highest level of motor performance money can buy..

INCLUDES  BULLETS!

Features:

• Higher efficiency over previous generation
• Thinner stator laminations 
• Lower temperatures
• Smooth operation; no cogging
• Specialized wires,heat resistance up to 250 degree C
• Precision balanced
• High performance stator metal sheet
• Optimized ventilation
• High quality NMB bearings
• Superb quality and machining of CNC parts

Specifications:  
Slots & Poles: 24n8p  
Winding T: 2Y  
rpm/V: 1200  
Volt (V): 10 | 20 | 25 
Io(A): 2.1 | 3.2 | 4.2 
Rm (mohm): 6 | 6 | 6  
Weight (without connector): 350g  
Body Length (no shaft): 51.2mm  
Diameter: 49.5mm  
Shaft Length: 22mm  
Shaft Diameter: 6mm  
Mounting Holes CTC Distance: 25mm  & 30mm 
Mounting Screw: 3mm & 4mm  
Max Eff. Curr.: 55.57 | 97.01 | 124.26  
Max Eff.: 92.44 | 93.40 | 93.24  
Kt (Nm/A): 0.008  
Km (Nm/sqrt(w)): 0.0965 
Max Continuous Power (Watts): 2300 
Peak Continuous Power (Watts) (5 sec): 2900  
Max cont. current (A): 105