Xnova 4025-670KV 2.5Y V2 Brushless Motor w/6mm Shaft (Shaft B)

This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Low Price: $219.99
Discontinued Online

This is the Xnova 4025-670KV 2.5Y Brushless Motor with a 6mm "Type B" 28mm Shaft. This high performance brushless motor was developed for the Goblin 570 and is recommended for sport flying (low head speed, depending on gearing) on 6-8S, or extreme 3D on 8-10S.

The V2 Version of the motor only utilizes 3x25mm Mounting options. V3 Versions use both 3x25mm, and 4x30mm.


  • "B Shaft" 28mm long, 6mm diameter
  • Ideal for Goblin 570
  • Good for sport flying on 6-8S, or extreme 3D on 8-10S
  • 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: 2.5Y
rpm/V: 670
Volt (V): 10 | 20 | 30
Io(A): 1.1 | 1.6 | 2.2
Rm (mohm): 16.7 | 16.7 | 16.7
Weight (without connector): 381g
Body Length (no shaft): 55.75mm
Diameter: 49.5mm
Shaft Length: 28mm
Shaft Diameter: 6mm
Max Eff. Curr.: 25.66 | 43.77 | 62.87
Max Eff.: 91.43 | 92.69 | 93.00
Kt (Nm/A): 0.0143
Km (Nm/sqrt(w)): 0.1103
Max Continuous Power (Watts): 3000
Peak Continuous Power (Watts) (5 sec): 4000
Max cont. current (A): 80


This product was added to our catalog on June 16, 2016.