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Scorpion HKIV-4025-1100 Brushless Motor (1100KV) - T-rex 550/ 600/ Goblin 570/ Kraken 580

Scorpion HKIV-4025-1100 Brushless Motor (1100KV) - T-rex 550/ 600/ Goblin 570/ Kraken 580

Regular price $353.99 CAD
Regular price Sale price $353.99 CAD
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The HKIII-4025 series motors have proven themselves to be extremely successful in heli community and has become the most popular motor used in 500~600 class helicopters world-wide.

And now we are pleased to announce the release of the fourth generation HKIV-4025 series motors. With the same motor design and materials of HKII-45 series, and single strand winding technique on this size of motor, it has the better efficiency and power conversion than HKIII-40 series, with an entirely new EM field design, while improving the compatibility with various speed controllers available on the market. This new design motor will deliver even more power to your helicopter, with increased efficiency!

Scorpion HKIV-4025-1100KV


Stator Diameter: 40 mm (1.57 in)
Stator Thickness: 25 mm (0.98 in)
No. of Stator Arms: 12
Magnet Poles: 10
Motor Wind: 3+3 Turn Delta
Motor Wire: 1-Strand 1.7 mm
Motor Kv: 1100KV RPM/Volt
No-Load Current (IO/10v): 5.29 Amps
Motor Resistance (RM): 0.006 Ohms
Max Continuous Current: 100 Amp
Max Continuous Power: 2220 Watt
Weight: 347 Grams (10.58 oz)
Outside Diameter: 49.50 mm (1.95 in)
Shaft Diameter: 5.98 mm (0.24 in)
Body Length: 54 mm (2.13 in)
Overall Shaft Length: 89.9 mm (3.54 in)
Max Lipo Cell: 6s
Peak Continuous Current: 130 Amps (5 seconds)
Peak Continuous Power: 2886 Watts (5 seconds)
Motor Timing: 5deg
Drive Frequency: 8kHz


  • 1 x Scorpion HKIV-4025-1100KV Motor
  • 3 x Female Connectors
  • 3 x Connector Cover
  • 4 x M3 Screws
  • 4 x M4 Screws

Weight including packaging: 774g