A strong electric motor for a dirt bike combines power suited to the bike and terrain with a drive system and controller that match the build. The Kunray 72V 3000W Kit stands out for off-road use because it includes a brushless controller and throttle, and its motor has temperature sensing. This roundup also includes 72V kits rated from 1,000W to 5,000W, a 2,000W option, and a 3,000W hub motor, so the right choice depends on fit and installation—not just the largest power figure.
Check whether you need a complete kit or a motor alone, and verify that the voltage, mounting, chain or wheel arrangement, and controller suit your bike before ordering. Product details here establish features, not fitment for a specific frame.
The Kunray 72V 3000W Kit is the leading choice because it is explicitly designed for off-road use and includes a brushless controller and universal throttle. Its temperature sensor can be set through a compatible controller to help protect the motor, an important feature when heat is a concern. Its 72V, 3,000W configuration sits between the lower-powered 1,000W and 2,000W kits and the 5,000W options.
Confirm mounting and controller compatibility with your dirt bike before buying.
Our Top Picks
Best OverallExplicitly designed for off-road use, this 72V, 3,000W kit includes a controller and throttle, plus a temperature sensor configurable through a compatible controller.
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Dirt-Bike FitIts title specifically names dirt bikes, and the 72V, 2,000W brushless kit includes a controller and universal throttles for a complete motor setup.
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Geared DriveListed for electric dirt bikes, this 72V kit includes a gearbox, speed controller, and 428 sprocket pedal, suiting builds that need a geared drive.
View on Amazon- Highest Rated Power Chokayaky 72V 5000W Kit
- Hub-Motor Design GregYoung QS205 Hub Motor
Compare These Dirt-Bike Motor Kits
| # | Product | Voltage | Weight | Material Type | Buy |
|---|---|---|---|---|---|
| 1 | 1. Kunray 72V 3000W KitBest Overall | 72 V | 5.5 kg | Aluminum | View on Amazon |
| 2 | 2. Fobuaggc 72V 2000W KitDirt-Bike Fit | — | — | Aluminum | View on Amazon |
| 3 | 3. YC Yier 72V 1000W KitGeared Drive | 72 V | — | — | View on Amazon |
| 4 | 4. Chokayaky 72V 5000W KitHighest Rated Power | 72 V | — | — | View on Amazon |
| 5 | 5. doin al KR5V 5000W KitTemperature-aware 72V builds | 72 V | 8 kg | — | View on Amazon |
| 6 | 6. GregYoung QS205 Hub MotorHub-Motor Design | — | 32 lb | Metal | View on Amazon |
| 7 | 7. doin al KR5V V2 MotorStandalone 72V motor swaps | 72 V | 5.81 kg | Copper | View on Amazon |
Detailed Reviews: Best Electric Motor For Dirt Bike

#1 · Best Overall
1. Kunray 72V 3000W Kit
- Voltage: 72 V
- Weight: 5.5 kg
- Material Type: Aluminum
Best for: Off-road temperature control.
Why it ranks #1: Explicitly designed for off-road use, this 72V, 3,000W kit includes a controller and throttle, plus a temperature sensor configurable through a compatible controller.
A KTY83-120 temperature sensor lets this 72V, 3000W Kunray motor work with controller-set temperature protection, giving off-road builders a way to manage motor heat. The kit also includes a brushless controller and universal throttle, while its listing explicitly limits use to off-road rather than regular-road driving.
The temperature sensor and controller temperature setting connect monitoring with a practical way to protect the motor from heat when using a large-current controller. Its 72V, 3000W rating gives builders defined electrical and output specifications to plan around, and the included controller and universal throttle cover two key control components. The built-in Bluetooth controller supports app use on Android and Apple devices; the listing says no Bluetooth dongle is included. This motor is designated for off-road use only.
- KTY83-120 temperature sensor
- Controller-set temperature protection
- 72V, 3000W motor with controller and universal throttle
- Built-in Bluetooth controller with Android and Apple app compatibility
- The product is designated for off-road use and cannot be driven on regular roads.
Skip it if you need a motor for regular-road driving; this Kunray kit is explicitly for off-road use only.
This Kunray kit fits off-road builders who want temperature sensing, controller-set protection, and app compatibility in a 72V package. Its 3000W rating and included throttle are useful planning details, but the off-road-only restriction rules it out for regular-road use.
Full product details
| Brand | Kunray |
|---|---|
| Included Components | motor,Brushless Controller and Universal Throttle Handlebar |
| Item Dimensions W x H | 4.13"W x 4.13"H |
| Item Weight | 5.5 kg |
| Manufacturer | Kunray |
| Material | Aluminum |
| Model | 72V 3000W |
| Dimensions | 4.13"W x 4.13"H |
| Voltage | 72 volts |
Listed on Amazon as: Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller
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#2 · Dirt-Bike Fit
2. Fobuaggc 72V 2000W Kit
- Material Type: Aluminum
Best for: Aluminum-housing 2000W builds.
Why it ranks #2: Its title specifically names dirt bikes, and the 72V, 2,000W brushless kit includes a controller and universal throttles for a complete motor setup.
A 4300-r/min speed specification distinguishes this 72V, 2000W brushless motor kit, giving electric dirt-bike builders a concrete motor-speed figure for project planning. Its aluminum housing is described as rust-proof and corrosion-resistant, while the title lists a controller and universal throttles among the kit’s included components.
The stated 4300-r/min speed and 72V, 2000W specifications help builders plan around the motor’s listed operating details rather than an unspecified output. An aluminum housing is described as rust-proof and corrosion-resistant, making the casing a relevant consideration for a vehicle exposed to outdoor use. The title also identifies a controller and universal throttles, which can reduce the number of separate control components to source. Its 2000W rating is the key boundary for matching it to a build’s output needs.
- 72V, 2000W brushless motor
- Listed 4300-r/min speed
- Aluminum housing described as rust-proof and corrosion-resistant
- Title lists controller and universal throttles
- Its 2000W rating is a lower-output choice for builds that call for more motor power.
Skip it if you need a motor rated above 2000W; the Chokayaky 72V 5000W kit offers a higher stated rating.
This Fobuaggc kit suits a 72V dirt-bike or other electric-vehicle builder whose project fits a 2000W motor and values an aluminum housing. Use the listed 4300-r/min figure and controller-and-throttle inclusion to assess fit before planning the installation.
Full product details
| Brand | Fobuaggc |
|---|---|
| Included Components | See details |
| Manufacturer | Fobuaggc |
| Material | Aluminum |
| Model | 396526 |
| Warranty Description | 90 Days |
Listed on Amazon as: 72V 2000W Electric Brushless Motor, 4300RPM High Speed BLDC Motor Kit, Electric Gokart Motor with Controller and Universal Throttles, for E-Scooter E-Bike Dirt Bike Motorcycle
View on AmazonWhy it ranks #3: Listed for electric dirt bikes, this 72V kit includes a gearbox, speed controller, and 428 sprocket pedal, suiting builds that need a geared drive.
A gearbox comes with this 72V, 1000W brushless motor, giving DIY electric dirt-bike builders a motor package that also includes speed control. Its sine-wave design is presented as a customizable ride feature, and the listed vehicle applications span pit bikes, ATVs, scooters, and go-karts.
The included gearbox and speed controller make this a more complete package than a motor by itself, giving builders key drive and control components to incorporate into a project. Its 72V, 1000W rating helps define the electrical system and output around which to plan. The sine-wave design is described as supporting a customizable ride, while the listed applications include electric dirt pit bikes, ATVs, and go-karts. That 1000W rating is the main output boundary when choosing a build.
- 72V, 1000W brushless motor
- Gearbox included
- Speed controller included
- Sine-wave design described as customizable
- The 1000W rating is a lower-output option for builds needing greater motor power.
Skip it if you need a motor rated above 1000W; the doinal KR5V V2 is specified at 5000W.
This YC Yier package suits DIY builders of electric pit bikes and other listed vehicles who want a gearbox and speed controller with a 72V motor. Its 1000W rating sets a clear boundary for projects requiring greater output.
Full product details
| Brand | YC Yier |
|---|---|
| Included Components | Electric Motor Kit |
| Manufacturer | YC Yier |
| Voltage | 72 volts |
| Wattage | 1000 watts |
Listed on Amazon as: 72V 1000W Brushless DC Motor & Gearbox & Controller & 428 Sprocket Pedal for Electric Dirt Bikes, Go Karts, Golf Carts,ATVs, Quad, Buggies,Drift Trikes, Tricycles, Motorcycle, Scooters
View on AmazonWhy it ranks #4: The 5,000W, 72V brushless kit includes a controller, throttle, and ignition key; its aluminum housing has cooling fins to help dissipate heat.
The 72V, 5000W brushless motor comes with a Fardriver controller, throttle, and ignition key, giving dirt-bike project builders several core drive components together. Its aluminum housing and integrated cooling fins help dissipate heat, a practical feature for riders planning sustained operation within a compatible 72V setup.
The included controller, throttle, and ignition key make this more than a standalone motor purchase: they provide several parts needed to assemble a powered vehicle. Its 72V and 5000W specifications identify the electrical system and rated output to plan around, while the brushless design suits applications including electric motorcycles, e-bikes, and go-karts. Aluminum housing with integrated cooling fins helps dissipate heat during operation. Check that your project uses 72V and can accommodate the kit’s components.
- 72V, 5000W brushless motor
- Fardriver controller included
- Throttle and ignition key included
- Aluminum housing with integrated cooling fins
- Its specified 72V operation limits it to projects planned around a 72V system.
Skip it if you need a motor for a different system voltage; this kit is specified for 72V operation.
For a builder assembling a 72V electric dirt-bike project, the included controller, throttle, and ignition key can simplify sourcing core components. Its 5000W rating and cooling-finned housing suit buyers planning around those specifications; voltage compatibility remains essential.
Full product details
| Brand | Chokayaky |
|---|---|
| Included Components | motor, controller, padel throttle,ignition key |
| Manufacturer | CSKUNRUI |
| Voltage | 72 volts |
| Wattage | 5000 watts |
Listed on Amazon as: 72V 5000W Motor Kit Fardriver Controller Electric Brushless DC Motor Kit
View on AmazonWhy it ranks #5: This 72V, 5,000W kit includes a 100A Fardriver controller and twist throttle, with a temperature-sensing motor and externally mounted hall components.
Temperature sensing sets this 72V, 5000W brushless motor kit apart, pairing a sensor-equipped motor with a 100A Fardriver controller. The sensor and controller give builders temperature-aware hardware for an electric dirt-bike project, while the included twist throttle provides a familiar handlebar input for controlling the vehicle.
The 100A Fardriver controller is paired with the 72V brushless motor, giving the buyer a matched core electrical component set rather than a motor alone. Temperature sensing adds a way to monitor motor heat, while the pure copper coil and five pairs of magnetic poles are listed motor construction details. The twist throttle supports handlebar operation. At 8 kg, the motor also has a stated weight to account for when planning a build and handling installation.
- 72V, 5000W brushless motor
- 100A Fardriver controller included
- Temperature-sensing motor
- Twist throttle included
- The motor weighs 8 kg, a substantial component to account for during installation.
Skip it if you need to keep motor weight down; this one is listed at 8 kg, while the doinal KR5V V2 is 5.81 kg.
This kit suits a builder seeking a 72V, 5000W motor with temperature sensing, a 100A controller, and twist-throttle input. Account for its 8 kg motor weight when planning installation and make sure the project is set up for 72V.
Full product details
| Brand | doinal |
|---|---|
| Included Components | 1x 72V 5000W Brushless Motor, 1x 100A Fardriver Controller, 1x Twist Throttle |
| Item Dimensions W x H | 4.6"W x 5.4"H |
| Item Weight | 8 kg |
| Manufacturer | Donial |
| Model | KR5V |
| Dimensions | 4.6"W x 5.4"H |
| Voltage | 72 volts |
Listed on Amazon as: Brushless Motor Kit 72V 5000W Peak 8000RPM with 100A Fardriver Controller
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#6 · Hub-Motor Design
6. GregYoung QS205 Hub Motor
- Weight: 32 lb
- Material Type: Metal
Best for: 150mm rear-hub conversions.
Why it ranks #6: The 3,000W QS205 uses a 150mm dropout hub design for rear-fork installation and fewer drivetrain parts, but the listing identifies its included component as a mid-drive motor.
The QS205 50H combines a 3000W brushless motor with a 150mm dropout for rear-fork installation, making it a hub-motor option for dirt-bike and e-bike builders. Its in-wheel layout simplifies the drivetrain by reducing moving parts, which can mean less drivetrain maintenance than a more component-heavy arrangement.
This hub motor places the drive unit in the wheel, so the listing’s fewer-moving-parts design can simplify the drivetrain and reduce maintenance demands. Its 3000W rated power and brushless construction provide defined motor details for a conversion plan, while the 150mm dropout specifies the rear-fork spacing needed for installation. The product is described as compatible with various e-bikes and motorcycles, but the dropout measurement is the key fit constraint to check against the intended rear fork.
- 3000W rated brushless motor
- 150mm dropout for rear-fork installation
- In-wheel hub design simplifies the drivetrain
- Fewer moving parts mean less maintenance
- Installation requires a rear fork compatible with the 150mm dropout.
Skip it if you have a rear fork that cannot accommodate a 150mm dropout; the YC Yier 72V 1000W kit is a different motor format.
Choose this QS205 hub motor for a dirt-bike or motorcycle conversion when an in-wheel layout and reduced drivetrain maintenance are priorities. Its 3000W rating and 150mm dropout are central fit considerations; confirm the rear-fork spacing matches your build.
Full product details
| Brand | GregYoung |
|---|---|
| Included Components | Mid Drive Motor |
| Item Weight | 32 pounds |
| Manufacturer | QS |
| Material | Metal |
| Model | QS205 50H |
Listed on Amazon as: QS205 50H 3000W 150MM Hub Motor,High Torque Electric Motorcycle Dirt Bike Brushless Dc Hub Motor
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#7
7. doin al KR5V V2 Motor
- Voltage: 72 V
- Weight: 5.81 kg
- Material Type: Copper
Best for: Standalone 72V motor swaps.
Why it ranks #7: This 72V, 5,000W brushless motor has copper coils and five pole pairs, but its listed package includes the motor only, not a controller or throttle.
The doinal KR5V V2 pairs a 72V, 5000W rating with a pure copper coil and five pairs of magnetic poles, giving builders a high-output brushless motor with specified construction details. Its included components list names the motor itself, making this a focused option for projects sourcing control hardware separately.
The 72V and 5000W specifications give builders a defined electrical system and rated output for planning a dirt-bike conversion. A pure copper coil is described as efficient and conductive, while the V-magnetic design with five pairs of poles is presented as supporting stable, durable operation. The Hall sensor sits near the back cover for better protection, according to the listing. Since the included-components list names only the motor, plan to source a controller and throttle separately if the project requires them.
- 72V, 5000W brushless motor
- Pure copper coil
- V-magnetic design with five pairs of poles
- Hall sensor installed near the back cover
- The included-components list names the motor only, so controller and throttle sourcing is separate.
Skip it if you need a motor kit with its controller included; the doinal KR5V 72V 5000W kit includes a 100A Fardriver controller and twist throttle.
This KR5V V2 suits builders who need a 72V, 5000W motor and already have or plan to source control hardware separately. Its coil, magnetic-pole, and Hall-sensor details help identify the motor, but the listed package is motor-only.
Full product details
| Brand | doinal |
|---|---|
| Included Components | 72V 5KW brushless dc motor |
| Item Dimensions W x H | 5.4"W x 5.4"H |
| Item Weight | 5.81 kg |
| Manufacturer | Doinal |
| Material | Copper |
| Model | KR5V |
| Dimensions | 5.4"W x 5.4"H |
| Voltage | 72 volts |
| Wattage | 5000 watts |
Listed on Amazon as: Electric Brushless DC Motor 72V 5000W Peak 8000RPM Scooter Motor KR5V V2
View on AmazonCheck drivetrain architecture before choosing a motor
A motor’s stated power does not establish that it will attach to your dirt bike’s frame or drivetrain. The listings cover different architectures: the YC Yier 72V 1000W Kit specifies a gearbox and 428 sprocket pedal, while the GregYoung QS205 Hub Motor describes a 150mm dropout for rear-fork installation. Those are not interchangeable mounting arrangements.
The QS205 listing also calls the included component a mid-drive motor despite naming a hub motor in its title, so verify the exact product configuration with the seller before designing around it. For a chain-driven conversion, confirm sprocket alignment, chain size, mounting points, and available space.
For a hub setup, measure the dropout and confirm that the wheel and frame can accept it. None of the supplied details establishes compatibility with a particular dirt-bike model.
Plan for heat and component matching
Heat protection and complete-system compatibility can be decisive because these listings do not all include the same parts. The Kunray 72V 3000W Kit has a temperature sensor that can be set through a compatible controller, while the Chokayaky 72V 5000W Kit describes cooling fins on its aluminum housing. These features address heat in different ways; neither listing supplies a guaranteed operating temperature or performance under a specific riding load.
The doinal KR5V V2 Motor is listed as a motor-only package, unlike kits that include a controller and throttle, so buyers must account for the rest of the system. Before purchasing, match motor voltage to the battery and controller, check controller current and sensor support, and confirm wiring and connector compatibility.
A motor’s wattage alone does not confirm that the battery or controller can safely operate it.
How to Choose a Dirt-Bike Electric Motor
Power and voltage
Look for a voltage and power level that your bike’s battery and controller can support, rather than choosing on wattage alone. Listed options range from the YC Yier 72V 1000W Kit to 72V 5,000W kits from Chokayaky and doinal; the Kunray is rated 72V and 3,000W. The Fobuaggc is a 72V, 2,000W option.
These figures describe different output classes, but the supplied details do not establish acceleration, range, or suitability for a particular rider. A buyer prioritizing a lower listed power level may prefer the YC Yier, while someone seeking a higher-rated kit may compare the 5,000W options and verify that the rest of the system is compatible.
Drive and mounting style
Choose a motor architecture that matches the bike’s frame, wheel, and drivetrain. The YC Yier specifies a gearbox and 428 sprocket pedal; the GregYoung QS205 listing gives a 150mm dropout for rear-fork installation, while the other options are presented as motor or brushless motor kits without equivalent mounting measurements. These details make the YC Yier a candidate for a chain-and-gearbox conversion and the QS205 a candidate only where the rear-fork dimensions and hub arrangement fit.
Buyers who cannot confirm mounting compatibility should measure first and request clarification rather than assume that a dirt-bike label means universal fit. Check sprocket alignment, chain clearance, and physical dimensions as part of the same decision.
Kit completeness and heat features
Check which controls and protective features are actually included, because a motor listing may not be a complete conversion kit. Chokayaky includes a controller, pedal throttle, and ignition key; the Kunray includes a brushless controller and universal throttle and adds temperature sensing. The doinal 5000W kit lists a 100A Fardriver controller and twist throttle, whereas the doinal KR5V V2 listing includes the motor only.
The YC Yier package describes a gearbox and speed controller. A buyer who wants fewer separate parts to source can favor a listed kit, while someone who already has compatible electronics may consider a motor-only option.
Confirm connector, sensor, and controller compatibility before relying on included components.
Which Electric Motor Should You Choose for Your Dirt Bike?
For an off-road-oriented complete kit with temperature sensing, choose the Kunray 72V 3000W Kit; it ranks first and includes a controller and throttle. If your build calls for a 72V gearbox setup with a 428 sprocket, consider the YC Yier 72V 1000W Kit. The Fobuaggc 72V 2000W Kit is another directly dirt-bike-named option, with a controller and throttles included.
For a higher listed power rating, compare the Chokayaky 72V 5000W Kit and doinal KR5V 5000W Kit, checking their controls and compatibility carefully. Choose the GregYoung QS205 Hub Motor only after verifying the 150mm dropout and resolving the listing’s hub-versus-mid-drive wording.
The doinal KR5V V2 Motor is best suited to buyers who already have a compatible controller and throttle.
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Frequently Asked Questions
How do I confirm that a motor kit will fit my dirt bike’s frame and drivetrain?
Confirm the motor’s mounting dimensions and style match your frame, then check the drivetrain details, including sprocket compatibility and chain alignment. Verify the listing’s included components and clarify any ambiguous descriptions before buying. For the QS205 listing, specifically check the 150mm dropout and resolve its hub-versus-mid-drive wording.
What battery and controller requirements should I check before installing a 72V motor?
Check that your battery and controller are explicitly compatible with the motor’s 72V configuration, and verify the controller’s required connections and current capability with the seller or product documentation. Do not assume a controller is included: some listings name one, while the doinal KR5V V2 is suited to buyers who already have a compatible controller and throttle.
How should I protect an electric dirt-bike motor from heat during off-road riding?
Use temperature monitoring and avoid sustained operation that pushes the motor beyond its allowed temperature. The Kunray kit’s temperature sensor can be set through a compatible controller to help protect the motor. Confirm that your controller supports this function, and follow the motor and controller instructions for setup and operating limits.
How should I choose between the listed motor power ratings?
Match the listed power rating to your build needs, while checking compatibility and intended use rather than choosing by rating alone. The available options range from 1,000W and 2,000W kits through 3,000W to 5,000W listings. The editorial pick is the off-road-oriented 3,000W Kunray kit, positioned between the lower- and higher-powered options.
Which included controls should I verify before ordering a kit?
Check the listing for a controller and throttle, then confirm their compatibility with your motor and battery. The Kunray kit includes a brushless controller and universal throttle; the Fobuaggc listing names a controller and throttles. Other listings may describe different included parts, so verify the exact package rather than assuming controls are supplied.
Final Words
For an off-road-oriented complete kit, the Kunray 72V 3000W Kit is the leading choice: it includes a brushless controller, universal throttle, and a temperature sensor that can be set through a compatible controller. Before deciding, confirm frame mounting, drivetrain fit, and controller compatibility. Consider the YC Yier for a 428-sprocket gearbox setup, or compare the 5,000W options only after checking their controls and fit.




