XeRun Justock 3650 SD G2.1

Great Construction

The use of a heat-resistant magnet attached aluminum case and double
insulated windings, high precision & strength bearings, and rotor with a
strong structure guarantees outstanding performance and super durability.

Great Construction

XeRun Justock 3650 SD G2.1 10.5T

Cool Look & Good Heat-dissipation

The aluminum case (different from the Justock3650 G1’s iron case) with
a unique design not only creates a cool look but helps to dissipate heat.

Cool Look &
Good Heat-dissipation

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.

Linear & Smooth Control

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).

Re-buildable Design

XeRun Justock 3650 SD G2.1 10.5T

Copper Solder Tabs

Copper solder tabs with super low impedance at the load end of the motor allows users
to directly solder the ESC wires onto the tabs for solid connection and simple wiring.

Copper Solder Tabs

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.

Compatible with
XR10 Justock ESC

Complied with EFRA, ROAR Rules (the Approval is Pending)

The motor design is in compliance with EFRA and ROAR specifications.

Product Name
Product Number
Type Scale

Brushed/Brushless

Sensored/Sensorless

Pole Count
Relevant Parameters KV Rating

LiPo Cells

No-load Current(A)
Size & Weight O.D.(mm)

Length (mm)

Shaft Diameter (mm)

Weight (g)

Front Bearing

Rear Bearing
Other Parameters Timing

Applications
Product Name JuStock 3650 10.5T G2.1 JuStock 3650 13.5T G2.1 JuStock 3650 17.5T G2.1 JuStock 3650 21.5T G2.1 JuStock 3650 25.5T G2.1
Product Number 30408009 30408010 30408011 30408012 30408013
Type Scale

Brushed/Brushless

Sensored/Sensorless

Pole Count
1/10th,1/12th

BL

SD

2
1/10th,1/12th

BL

SD

2
1/10th,1/12th

BL

SD

2
1/10th,1/12th

BL

SD

2
1/10th,1/12th

BL

SD

2
Relevant Parameters KV Rating

LiPo Cells

No-load Current(A)
4000

2-3S

4.9
3200

2-3S

4
2050

2-3S

3
2050

2-3S

3
1600

2-3S

2.8
Size & Weight O.D.(mm)

Length (mm)

Shaft Diameter (mm)

Weight (g)

Front Bearing

Rear Bearing
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

175g(6.17oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

175g(6.17oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

176g(6.21oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

175g(6.17oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

173g(6.10oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
Other Parameters Timing

Applications
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Support

Manuals & Documents

FAQ

XeRun Justock 3650 SD G2.1

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.

Great Construction

Cool Look & Good Heat-dissipation

The aluminum case (different from the Justock3650 G1’s iron case) with a unique design not only creates a cool look but helps to dissipate heat.

Cool Look
& Good Heat-dissipation

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.

Built-in Hall Sensor

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).

Re-buildable Design for
Maintenance & Replacement

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.

Plug-and-Play

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.

Excellent Compatibility

Complied with IFMAR, ROAR Rules (the ROAR Approval is Pending)

The motor design is in compliance with IFMAR and ROAR specifications.

Complied with IFMAR, ROAR Rules

Product Name JuStock 3650 10.5T G2.1
Product Number 30408009
Type Scale

Brushed/Brushless

Sensored/Sensorless

Pole Count
1/10th,1/12th

BL

SD

2
Relevant Parameters KV Rating

LiPo Cells

No-load Current(A)
4000

2-3S

4.9
Size & Weight O.D.(mm)

Length (mm)

Shaft Diameter (mm)

Weight (g)

Front Bearing

Rear Bearing
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

175g(6.17oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
Other Parameters Timing

Applications
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Product Name JuStock 3650 10.5T G2.1 JuStock 3650 13.5T G2.1 JuStock 3650 17.5T G2.1 JuStock 3650 21.5T G2.1 JuStock 3650 25.5T G2.1
Product Number 30408009 30408010 30408011 30408012 30408013
Type Scale

Brushed/Brushless

Sensored/Sensorless

Pole Count
1/10th,1/12th

BL

SD

2
1/10th,1/12th

BL

SD

2
1/10th,1/12th

BL

SD

2
1/10th,1/12th

BL

SD

2
1/10th,1/12th

BL

SD

2
Relevant Parameters KV Rating

LiPo Cells

No-load Current(A)
4000

2-3S

4.9
3200

2-3S

4
2050

2-3S

3
2050

2-3S

3
1600

2-3S

2.8
Size & Weight O.D.(mm)

Length (mm)

Shaft Diameter (mm)

Weight (g)

Front Bearing

Rear Bearing
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

175g(6.17oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

175g(6.17oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

176g(6.21oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

175g(6.17oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
35.9(1.413in)

52.5(2.067in)

3.17(0.125in)

173g(6.10oz)

D9.525*D3.175*t3.967

D9.525*D3.175*t3.967
Other Parameters Timing

Applications
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Fixed

STOCK/SPORT class (choose the motor as

per competition rules) of 1/10th , 1/12th

On-road (i.e. competition touring car or drift,

F1, Mini car, and etc.) and Off-road (i.e.

buggy, 2WD SCT & truck) racing, Normal

Training, and Rock Crawlers (21.5T &

25.5T only).
Support

Manuals & Documents

FAQ