Exquisite appeareance
The exquisite look combined with an innovative heat
dissipation structure of the casing truly brings out a product Hobbywing is proud of.
Exquisite appeareance
The exquisite look combined with an innovative heat dissipation structure of the casing truly brings out a product Hobbywing is proud of.
EzRun 4278 SD G2
EzRun 4268 SD G2
EzRun 4278 SD G2
EzRun 4268 SD G2
Aggressive launch
High speed on the straight line
Flying slopes
Fully sensored mode High power
The EZRUN series of motors are known to be dynamic and dominant. They are built differently to meet the needs of various demands on the market. It has a strong output power with an excellent linearity at low speed and is operating on full-sensored mode.
video
A perfect combo with the EzRun MAX8 G2 ESC
The motor achieves perfect compatibility when used together with the EZRUN MAX8 G2 ESC.
It provides ultra-large torque, precise handling performance, and brings a smooth and comfortable control experience to the users.
High quality materials and excellent product design
The materials (Motor casing, bearings, ultra-thin silicon steel sheets, high temperature-resistance copper wire, explosion-proof rotor, high-tolerance alloy shalf) are carefully selected and approved by our in-house engineers.
Hobbywing is serious in providing users with an extraordinary performance for a long period of time.
Applicable to All Weather Track Conditions
The IP-67 waterproof system guarantees excellent waterproofing and dustproofing protection.
The whole power system is able to drive on a variety of surfaces including muddy, sandy, icy, snowy and water without damaging the power unit.
video
Excellent waterproof and dustproof performance
video
Applicable to All Weather Track Conditions
The IP-67 waterproof system guarantees excellent waterproofing and dustproofing protection.
The whole power system is able to drive on a variety of surfaces including muddy, sandy, icy, snowy and water without damaging the power unit.
Excellent waterproof and dustproof performance
New sensored cable interface
Equipped with a new type of sensored cable interface.
It is high recommended to use the motors from Hobbywing as the waterproof protection level is at the highest level (IP67).
Equipped with a new type of sensored cable interface. It is high recommended to use the motors from Hobbywing as the waterproof protection level is at the highest level (IP67).
Practical design for easy disassembly and maintenance
The motor adopts a modular detachable structure design for easy disassembly and daily maintenance. This helps to prolong the lifespan of the motor and maintaining the efficiency of the motor is simple.
  • Explosion-proof rotor
    Explosion-proof rotor
  • High hardness aluminum CNC shell
    High hardness
    aluminum CNC shell
  • High-precision Endbell plate
    High-precision
    Endbell plate
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)

Connectors (mm)

Weight (g)

Front Bearing

Rear Bearing
Other Parameters Applications
Product Name EzRun 4278SD G2 EzRun 4268SD G2
Product Number 30402800 30402751
Type Scale

Brushed/Brushless

Sensored/Sensorless

Pole Count		 1/8th

BL

SD

4		 1/8th

BL

SD

4
Relevant Parameters KV Rating

LiPo Cells

No-load Current(A)		 2250KV

3-6S

5.0A		 2500KV

3-4S

4.8A
Size & Weight O.D.(mm)

Length (mm)

Shaft Diameter (mm)

Connectors (mm)

Weight (g)

Front Bearing

Rear Bearing		 42

78

5

6.5(male)

455g

D16*D5*T5

D11*D5*T5		 42

68

5

6.5(male)

355g

D16*D5*T5

D11*D5*T5
Other Parameters Applications 1/8thTruck, Monster Truck 1/8th Buggy，1/8th Heavy-duty Monster Trcuk
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EzRun 4268 & 4278 SD G2
Overview Specifications Support Accessories Detail
Exquisite appeareance
The exquisite look combined with an innovative heat
dissipation structure of the casing truly brings out a product Hobbywing is proud of.
Exquisite appeareance
The exquisite look combined with an innovative heat dissipation structure of the casing truly brings out a product Hobbywing is proud of.
EzRun 4278 SD G2
EzRun 4268 SD G2
EzRun 4278 SD G2
EzRun 4268 SD G2
Aggressive launch
High speed on the straight line
Flying slopes
Fully sensored mode High power
The EZRUN series of motors are known to be dynamic and dominant. They are built differently to meet the needs of various demands on the market. It has a strong output power with an excellent linearity at low speed and is operating on full-sensored mode.
video
A perfect combo with the EzRun MAX8 G2 ESC
The motor achieves perfect compatibility when used together with the EZRUN MAX8 G2 ESC.
It provides ultra-large torque, precise handling performance, and brings a smooth and comfortable control experience to the users.
High quality materials and excellent product design
The materials (Motor casing, bearings, ultra-thin silicon steel sheets, high temperature-resistance copper wire, explosion-proof rotor, high-tolerance alloy shalf) are carefully selected and approved by our in-house engineers.
Hobbywing is serious in providing users with an extraordinary performance for a long period of time.
Applicable to All Weather Track Conditions
The IP-67 waterproof system guarantees excellent waterproofing and dustproofing protection.
The whole power system is able to drive on a variety of surfaces including muddy, sandy, icy, snowy and water without damaging the power unit.
video
Excellent waterproof and dustproof performance
video
Applicable to All Weather Track Conditions
The IP-67 waterproof system guarantees excellent waterproofing and dustproofing protection.
The whole power system is able to drive on a variety of surfaces including muddy, sandy, icy, snowy and water without damaging the power unit.
Excellent waterproof and dustproof performance
New sensored cable interface
Equipped with a new type of sensored cable interface.
It is high recommended to use the motors from Hobbywing as the waterproof protection level is at the highest level (IP67).
Equipped with a new type of sensored cable interface. It is high recommended to use the motors from Hobbywing as the waterproof protection level is at the highest level (IP67).
Practical design for easy disassembly and maintenance
The motor adopts a modular detachable structure design for easy disassembly and daily maintenance. This helps to prolong the lifespan of the motor and maintaining the efficiency of the motor is simple.
  • Explosion-proof rotor
    Explosion-proof rotor
  • High hardness aluminum CNC shell
    High hardness
    aluminum CNC shell
  • High-precision Endbell plate
    High-precision
    Endbell plate
Product Name EzRun 4278SD G2
Product Number 30402800
Type Scale

Brushed/Brushless

Sensored/Sensorless

Pole Count		 1/8th

BL

SD

4
Relevant Parameters KV Rating

LiPo Cells

No-load Current(A)		 2250KV

3-6S

5.0A
Size & Weight O.D.(mm)

Length (mm)

Shaft Diameter (mm)

Connectors (mm)

Weight (g)

Front Bearing

Rear Bearing		 42

78

5

6.5(male)

455g

D16*D5*T5

D11*D5*T5
Other Parameters Applications 1/8thTruck, Monster Truck
Product Name EzRun 4278SD G2 EzRun 4268SD G2
Product Number 30402800 30402751
Type Scale

Brushed/Brushless

Sensored/Sensorless

Pole Count		 1/8th

BL

SD

4		 1/8th

BL

SD

4
Relevant Parameters KV Rating

LiPo Cells

No-load Current(A)		 2250KV

3-6S

5.0A		 2500KV

3-4S

4.8A
Size & Weight O.D.(mm)

Length (mm)

Shaft Diameter (mm)

Connectors (mm)

Weight (g)

Front Bearing

Rear Bearing		 42

78

5

6.5(male)

455g

D16*D5*T5

D11*D5*T5		 42

68

5

6.5(male)

355g

D16*D5*T5

D11*D5*T5
Other Parameters Applications 1/8thTruck, Monster Truck 1/8th Buggy，1/8th Heavy-duty Monster Trcuk
Support

Manuals & Documents

Manuals

FAQ