Hobbywing XERUN Justock 3650SD G2 Sensored Brushless Motor (25.5T)

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This is the Hobbywing XERUN Justock 3650SD G2 Sensored Brushless Motor. Considering the 3650 series has been around for a while and has proven it's usefulness, Hobbywing introduces the second generation, the G2.

The biggest and most notable advancement with the G2 is the updated aluminum can design. The first 3650 series used a iron case that looked bland and featured few ventilation holes. The G2 now uses an aluminum milled can that has been purpose refined with improved looks, improved ventilation and improved heat dissipation.


In-Depth Features: 

  • Great Construction: The use of a heat-resistant magnet attached aluminum case and double insulated windings, Japanese high precision bearings, and rotor with a strong structure guarantees outstanding performance and super durability.
  • Cool Look & Good Heat-dissipation: The aluminum case (different from the Justock3650 G1ís iron case) with a unique design not only creates a cool look but helps to dissipate heat.
  • Linear & Smooth Control: The built-in Hall sensor non-adjustable end bell combined with a high precision and balanced rotor guarantees the user a smooth and linear power on demand.
  • Re-buildable Design: The end bell is easy to be removed for maintenance purposes and for the replacement of common wearing parts such as rotor and sensor module (Ex bearings).
  • Plug-and-Play: Customized 3.5mm low impedance bullet connectors pre-soldered to the motor wires guarantee easy use and firm connections between the ESC and motor.
  • Compatible with XR10 Justock ESC: This motor is perfectly matched with the XR10-Justock ESC for all zero timing spec racing and also compatible with other Hobbywing Electronic Speed Controllers including other brands and is used in various 1/10th, 1/12th scale on-road & off-road vehicles. It is an ideal choice for Stock or Sport class racing but can also be a great choice for beginners or for the racers looking for a practice motor.
  • Complied with IFMAR, ROAR Rules: The motor design is in compliance with IFMAR and ROAR specifications.


  • Type:
    • Scale: 1/10th
    • Brushed/Brushless: Brushless
    • Sensored/Sensorless: Sensored
    • Pole Count: 2
  • Relevant Parameters:
    • KV Rating: 15500
    • LiPo Cells: 2-3S
    • No Load Current (A): 1.2V
  • Size & Weight:
    • Outer Diameter: 35.9mm
    • Length: 52.5mm
    • Shaft Diameter: 3.17mm
    • Weight: 179 grams
  • Other Parameters:
    • Timing: Fixed
    • Applications: 1/10th, 1/12th On-road (competition touring car or drift, F1, Mini car, etc.) and Off-road (buggy, 2WD SCT & truck) racing or bashing and Rock Crawlers (21.5T & 25.5T only).

This product was added to our catalog on December 30, 2016.

Alfred Broderick
Verified Owner
Monday, Nov 20 2017 (3 months ago)
Hobbywing XERUN Justock 3650SD G2 Sensored Brushless Motor (25.5T)
I think the output shaft is just couple millimeters shorter than I would have wanted. Otherwise, great motor!)
Cameron Kelly
Verified Owner
Thursday, Sep 14 2017 (5 months ago)
Hobbywing XERUN Justock 3650SD G2 Sensored Brushless Motor (25.5T)
I install this in my SCX10 a few weeks ago and so far it works fine. The only Cons I have are how it a 25.5t motor and its slower than the stock 27t brushed motor that came with my SCX10. The Positive is it has far more torque than the stock motor. It also runs a little hot compared to the stock motor as well.Fyi)