Xnova 4020-1200KV 2Y Brushless Motor w/6mm Shaft (Shaft B)

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Xnova 4020-1200KV 2Y Brushless Motor w/6mm Shaft (Shaft B)
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Price: $179.99

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This is the Xnova 4020-1200KV 2Y Brushless Motor with a 6mm "Type B" 22mm Shaft. This high performance brushless motor has the best power to weight ratio of the Xnova 4020 line. This is an ideal option for Goblin 500 helicopters and is a great choice for hard 3D flying styles.


  • "B Shaft" 22mm long, 6mm diameter
  • Ideal for Goblin 500
  • Good for hard 3D
  • Best power to weight ratio
  • High quality Neo Magnets, heat resistant up to 150 degree C
  • Specialized wires, heat resistance up to 250 degree C
  • Precision balanced
  • High performance stator metal sheet
  • Optimized ventilation
  • High quality NMB bearings
  • Marked leading high efficiency up to 92%
  • Superb quality and machining of CNC parts

Slots & Poles: 24n8p
Winding T: 2Y
rpm/V: 1200
Volt (V): 10 | 20
Io(A): 2.1 | 3.2
Rm (mohm): 8 | 8
Weight (without connector): 348g
Body Length (no shaft): 50.75mm
Diameter: 49.5mm
Shaft Length: 22mm
Shaft Diameter: 6mm
Mounting Holes CTC Distance: 25mm
Mounting Screw: 4* M3
Max Eff. Curr.: 51.23 | 89.44
Max Eff.: 91.80 | 92.84
Kt (Nm/A): 0.008
Km (Nm/sqrt(w)): 0.089
Max Continuous Power (Watts): 2400
Peak Continuous Power (Watts) (5 sec): 2900
Max cont. current (A): 105


This product was added to our catalog on July 7, 2015

Verified Owner
Tuesday, Sep 24 2019 (about 4 years ago)
Xnova 4020-1200KV 2Y Brushless Motor w/6mm Shaft (Shaft B)
This motor is awesome. With proper gearing, it runs cool, even sounds great and just performs. I'm very happy with it... not to mention, it's very handsome.

Side Note: I'm using this on a Synergy 516 which uses a different shaft. Installation of the shaft was easier than I thought. Although I didn't find any how-to videos, it's easy enough for the average hobbyist with a mechanical press to figure out.