Best Electric Motor For Bmx Bike: Compare Motors and Conversion Kits

#1 · Best Overall

1. Kunray MY1020 Kit

• Voltage: 48 V
• Wattage: 2000 W
• Material Type: Aluminum
• Weight: 6 kg

Best for: 48V High-Power DIY Builders.

Why it ranks #1: Its 48V, 2000W brushless motor comes with a 33A controller and throttle, plus an 11-tooth T8F sprocket for planning a custom chain drive.

A 48V brushless motor rated for up to 2000W pairs a 4300rpm no-load speed with an aluminum body, giving conversion builders a high-output motor with a specified cooling approach. The kit also includes a 33A controller and LCD throttle, so key control components come together in one package.

The aluminum motor body is described as heat resistant and naturally air cooled, which supports operation without a separate cooling system listed in the supplied details. Its full copper coil and low-noise description speak to the motor’s construction and ride character. The 11-tooth T8F sprocket gives builders a defined chain interface to work around, while the included controller and throttle provide the primary electrical control pieces. Rated voltage is 48V; plan the conversion around that specification.

Skip it if you need a matched controller current rating; the kit lists a 42A motor maximum and a 33A controller.

This Kunray kit suits experienced builders planning a 48V, high-output conversion who can account for its 11-tooth T8F sprocket and controller rating. Its motor, controller, and throttle are included, but the listed current figures merit attention.

Listed on Amazon as: Electric Brushless DC Motor Kit,48V 2000W Motor,33A Controller,LCD Throttle

#2 · Best Speed Control

2. Resfirme 2000W Kit

• Voltage: 48 V
• Wattage: 2000 W
• Material Type: Aluminum Alloy, Iron, Copper Magnets
• Weight: 13.5 lb

Best for: Adjustable-Speed Conversion Riders.

Why it ranks #2: The 48V, 2000W brushless kit includes an LCD twist throttle and three speed settings; its listed 5500 RPM and 5.1 N·m add useful detail.

A three-speed switch lets riders choose Low, Medium, or High output from a 48V, 2000W brushless gearless motor kit. The LCD twist throttle combines a power display with an ignition lock, giving builders a bundled control setup for e-bike, scooter, go-kart, or ATV conversion projects.

The gearless brushless drive is described as quieter and lower-friction, a practical consideration for riders prioritizing a calmer operating character. Its 5500rpm rated speed and 5.1 N·m torque specify the motor’s output profile, while the three speed settings let riders tailor output to conditions rather than staying in one mode. The LCD throttle’s power display and ignition lock consolidate information and switching at the handlebar. The kit includes the 48V motor, controller, and throttle.

Skip it if you want a wheel-included rear hub conversion; HuaShuani’s 20-inch hub kit includes a wheel motor and assembly accessories.

This Resfirme kit fits builders wanting selectable output and a handlebar display for an e-bike, scooter, go-kart, or ATV project. It supplies motor, controller, and throttle, but does not list a conversion wheel.

Listed on Amazon as: 48V 2000W Electric Motor Kit, 5500RPM Brushless DC Motor Kit with Controller, LCD Twist Throttle, 3-Speed Switch, Hight Speed Motor with Power-Off Brake, 3 Hall Sensors, for E-Bike Scooter

#3 · Highest Power

3. Wmpusll 3000W Kit

• Voltage: 48 V
• Wattage: 3000 W
• Material Type: Aluminum, Rubber
• Weight: 14.2 lb

Best for: High-Output Chain-Drive Builders.

Why it ranks #3: This 48V kit lists 3000W, a 4900 RPM rated speed, and a controller, pedal accelerator, and chain, though its high output needs careful build matching.

A 48V, 3000W brushless motor paired with a controller and foot pedal accelerator gives this Wmpusll kit a high-output, chain-drive project focus. Its stated 4900rpm rated speed and 6000rpm no-load speed frame the performance profile for modified bicycles, scooters, or go-kart builds.

The included controller and foot pedal accelerator provide two core control components, while the included chain supports a chain-driven installation workflow. Three-speed settings—Low, Medium, and High—are available after connecting the three-speed line, giving builders an output-selection option. The kit also lists IP33 protection and E-class insulation, useful specifications to consider for the intended environment. It is a 48V system, and the supplied components do not include a wheel, so this is not a drop-in hub-wheel conversion.

Skip it if you need a rear-wheel hub conversion; LiHUiee’s 48V 1500W motor is specified as a rear wheel motor.

This Wmpusll kit suits builders pursuing a high-output chain-driven modification with a foot pedal accelerator and selectable speed settings. Its 48V system and IP33 protection are relevant boundaries when planning the installation and operating environment.

Listed on Amazon as: 48V Electric Brushless Motor Complete Kit, 3000W 6000RPM High Speed Motor with Controller, Foot Pedal Accelerator, Chain, Go Kart Engine, Electric Scooter Bicycle Engine for Modified Bicycles

#4 · Best Brushed Option

4. Ytrica MY1020 Motor

Best for: Brushed Motor Replacement Projects.

Why it ranks #4: The 48V, 1000W brushed motor has an 11-tooth sprocket for a #25 chain and reversible rotation; the listing includes the motor only.

An 11-tooth sprocket for a #25H chain gives this 48V, 1000W brushed MY1020 motor a specific drive interface for replacement or conversion work. Its stated 3000rpm output and reversible rotation make it a motor-only option for compatible scooters, e-bikes, go-karts, and mini bikes.

The supplied model references include MY1020 and ZY1020G, which helps identify the replacement family this motor targets. Its 11-tooth sprocket is specified for a 25H chain with 6.35 pitch, so builders can assess the existing drive setup against a concrete chain detail. The motor runs at 48V and is rated at 1000W with a 3000rpm output speed. Because only the motor is listed as included, installation planning must account for the rest of the electrical and mounting components.

Skip it if you need a bundled controller and throttle; Kunray’s 48V 2000W kit includes both control components with its motor.

This Ytrica motor suits a replacement project with a compatible MY1020 or ZY1020G setup, a 25H chain, and a need for reversible rotation. It is motor-only, so source the other conversion components separately.

Listed on Amazon as: 48V 1000W MY1020 Electric Motor 11 Teeth Fit for Scooter E-Bike Go-Kart Electric Mini Bikes – Replace ZY1020G Reversible with 11T Sprocket #25 Chain 6.35 Pitch Reversible Brushed DC Motor

#5

5. Varstrom VSM01 Kit

• Voltage: 48 V
• Material Type: Acrylic

Best for: Torque-Sensing Hill Climbers.

Why it ranks #5: Its 48V mid-drive system specifies 750W and 130 N·m torque, but the listing does not provide BMX frame or drivetrain fitment details.

A 130 N·m torque sensor mid-drive is the defining feature of Varstrom’s 750W VSM01 kit, enabling responsive pedal assistance with a natural-feeling input. It is specified for assistance up to 28 mph and includes four ride modes, giving conversion builders alternatives to throttle-only operation on varied routes.

The torque-sensing assist responds to pedaling input, which can suit riders who want support to feel tied to their effort rather than relying only on a throttle. Throttle-only, walk-assist, and additional ride modes offer different ways to manage riding or moving the bike. The 48V system and mid-drive format are central fit considerations for a conversion; buyers should plan around the bike’s drivetrain and mounting requirements. The supplied listing identifies a motor and assembly kit, not a complete wheel conversion.

Skip it if you need a rear hub wheel conversion; LiHUiee’s 48V 1500W rear wheel motor is the hub-style alternative.

The Varstrom VSM01 suits riders seeking torque-sensing pedal support and multiple modes for routes with climbs or bike-pushing needs. Its mid-drive format is a key boundary: check drivetrain and mounting compatibility before choosing it.

Listed on Amazon as: Vastrom VSM01 750W 48V Mid Drive Torque Sensor Motor Ebike Conversion Kit

#6

6. PerGar 48V Hub Motor

• Voltage: 48 V
• Material Type: Metal

Best for: Quiet Rear-Hub Upgrade Builds.

Why it ranks #6: This 48V, 500W rear hub motor is a lower-output conversion candidate, but its listing gives no wheel size or included components.

A 48V, 500W brushless rear-drive hub motor places the drive at the back wheel, giving bicycle-upgrade projects a defined hub-motor configuration. Its aluminum alloy wheel rim is described as lightweight and durable at the wheel edge, while the listing also emphasizes quiet operation for riders seeking less motor noise.

The rear-drive hub arrangement makes this a wheel-based upgrade option rather than a mid-drive motor, which helps identify the broad conversion format. Its 48V rating gives builders a system voltage to plan around, and the 500W figure establishes the listed power level. The aluminum alloy rim is presented as a lightweight feature with wheel-edge durability in mind. The listing states no included components, so buyers should plan to source the remaining conversion parts and installation hardware separately.

Skip it if you need a complete hub conversion package; HuaShuani’s 20-inch kit lists a wheel hub motor and assembly accessories.

This PerGar motor suits a buyer seeking a 48V, 500W rear-hub upgrade and a lightweight aluminum alloy rim. Treat it as a component purchase: no included parts are listed for completing the conversion.

Listed on Amazon as: Electirc Bicycle Gear Hub Motor, 48v 500w Rear Drive Configuration Motor, Brushless Rear Drive Waterproof Metal Electric Bike Hub Motor, for Bicycle Upgrade Parts

#7

7. LiHUiee 1500W Hub Motor

• Voltage: 48 V DC
• Wattage: 1500 W
• Material Type: Aluminum+ Iron + Copper+Magnetic Steel
• Weight: 15.4 lb

Best for: Quiet Conventional-Bike Hub Builds.

Why it ranks #7: The 48V, 1500W brushless rear hub is listed for 20–28-inch conventional bikes, but that range does not establish fit with a BMX wheel or frame.

A brushless, gearless rear hub rated at 1500W and 500rpm is the defining combination in this LiHUiee motor. The listing specifies compatibility with conventional 20-to-28-inch bikes and 5.31-inch rear dropouts, helping builders narrow wheel and frame fit before planning a hub conversion.

Brushless, gearless construction is associated in the listing with reduced friction and smoother operation, while noise is specified at less than 55 dB. Those details may matter to riders prioritizing a quiet-running rear hub. The stated 20-to-28-inch wheel range and 5.31-inch dropout measurement provide concrete fit parameters to check against the bicycle. At 48V and 1500W, this is a motor-only listing with one rear wheel motor included, so additional conversion parts need separate planning.

Skip it if you want a complete conversion kit with controller and throttle; Resfirme’s 48V kit lists both alongside its motor.

This LiHUiee hub suits conventional-bike builders prioritizing a brushless, gearless rear motor and a listed wheel and dropout range. Check those dimensions against the bike; the package lists the motor alone.

Listed on Amazon as: Rear Wheel Motor, 48V 1500W Electric Hub Motor 500rpm Brushless Gearless Threaded Hub Motor for 20-28" Conventional Bikes and Rear Wheels with Dropouts of 5.31Inches

#8

8. HuaShuani 20×4 Hub Kit

• Wattage: 2000 W
• Material Type: Alloy Steel, Aluminum
• Weight: 27.2 lb

Best for: 20-Inch Fat-Tire Hub Conversions.

Why it ranks #8: Its 48V, 2000W rear hub kit specifies a 20-by-4-inch wheel, a size that differs from many BMX setups and needs close fitment checking.

A rear hub motor kit specified for 20-by-4-inch wheel sizes gives fat-tire conversion projects a clear wheel-format target. Its 48V, 2000W motor is paired with a display, five speed gears, fixed-speed cruise, and an intelligent PAS sensor, supporting several control approaches in one package.

The LCD reports power, speed, mileage, faults, real-time voltage, and current, giving riders multiple system readings at the display. Five adjustable speed gears and fixed-speed cruise provide options for varying how the motor is controlled during a ride. The motor is listed at 550rpm and a 34mph no-load speed, so those figures describe its stated performance rather than a guaranteed riding speed. The kit is specifically tied to 20-by-4-inch wheel sizing, making wheel format a central fit check.

Skip it if you need a 26-inch conversion; Jeaieaiu’s 26-inch kit specifies a different wheel size and includes a PAS sensor.

This HuaShuani package is aimed at builders converting a 20-by-4-inch fat-tire bike who want cruise control and a data-rich display. The wheel-size specification is decisive; it is not listed for other formats.

Listed on Amazon as: Electric Bike Conversion Kit, 48V 2000W Electric Bicycle Rear Wheel Hub Motor Kit for 20 4 inche Wheel Sizes, 5-Speed Gears, Fixed-Speed Cruise, LCD Display, Intelligent PAS Sensor

#9

9. HIFMGHE 500W Motor

• Voltage: 36 V
• Wattage: 500 W
• Material Type: Aluminum, Copper, Iron

Best for: Low-Speed Gear-Reduction Builds.

Why it ranks #9: This 36V, 500W gear-reduction motor lists 1700 RPM and 1.98 N·m torque, but it is a standalone brushed motor rather than a complete kit.

A 36V gear-reduction motor rated at 500W and 1700rpm offers a lower-speed specification for e-bikes, scooters, and dirt-bike projects. Its listed 1.98 N·m torque and gear-reduction format distinguish it from high-speed motor options, while the claimed 200kg load capacity targets heavier-duty mobility applications.

The 1700rpm speed and gear-reduction construction define a different operating profile from a high-speed motor, making the stated output useful for builders comparing motor types for their project. Its 36V rating is a firm system requirement to consider when planning electrical components. The listing gives a load capacity of up to 200kg and IP44 protection, providing stated limits and protection details to weigh for intended use. One brushed DC motor is included, so the listing is not a complete conversion kit.

Skip it if you need a 48V high-output conversion; Wmpusll’s 48V 3000W kit lists a controller and foot pedal accelerator.

This HIFMGHE motor fits builders seeking a 36V gear-reduction unit for a bicycle, scooter, or dirt-bike project with the stated load capacity in mind. It is a single motor, not a complete conversion package.

Listed on Amazon as: 36V 500W Gear Reduction Electric Motor MY1018E-D, 1700RPM Electric Bicycle Brushed Motor Reductor, High Torque DC Motor for Electric Bicycles Dirt Bikes Scooters E-Bike

#10

10. Jeaieaiu 26-Inch Kit

• Material Type: Iron

Best for: 26-Inch DIY Commuter Conversions.

Why it ranks #10: Its 48V, 1000W rear hub conversion is explicitly built around a 26-inch wheel, making it the least suited option for a BMX-sized wheel.

A 26-inch rear hub conversion kit bundles a 48V, 1000W brushless gearless motor wheel with a PAS sensor, thumb throttle, controller bag, and manual. That wheel-size-specific package targets DIY road, mountain, and commuter-bike builds, with several core conversion items supplied together.

The included PAS sensor supports pedal-assist setup, while the thumb throttle offers a separate handlebar control option. A controller bag gives the controller a listed storage component, and the included manual supports the DIY workflow. The 26-inch wheel size is central to fit, so this package is directed at matching that format rather than a smaller-wheel BMX build. The listing also specifies a seven-speed configuration and linear-pull brake style, details buyers should factor into their bicycle setup.

Skip it if you are converting a BMX-size wheel; HuaShuani’s kit is specified for a 20-by-4-inch wheel format.

This Jeaieaiu kit suits a DIY road, mountain, or commuter-bike conversion built around a 26-inch wheel, with PAS and throttle controls included. Its wheel size and linear-pull brake specification are key fit boundaries.

Listed on Amazon as: 26-Inch Electric Bike Conversion Kit, 48V 1000W Brushless Gearless Rear Hub Motor (440 RPM), with PAS Sensor, Thumb Throttle, and Controller Bag—Ideal for Road, Mountain, and Commuter Bikes (DIY)