Best Motor Attachment For Bike: Compare 10 Conversion Kits

#1 · Best Overall

1. BAFANG Mid Drive Kit

• Warranty Description: 30 days return,one year repair or replace…
• Weight: 7 kg

Best for: Programmable mid-drive tinkerers.

Why it ranks #1: Its 48V, 750W specification and mid-drive format suit electric conversion buyers, while compatible displays can adjust motor parameters directly.

BAFANG’s CAN-protocol mid-drive kits allow parameter adjustments through supported displays or a mobile app, without a USB programming cable, giving riders a more direct way to customize settings. The listing covers BBS01B, BBS02B, and BBS-HD motors, with compatible display choices for programming or standard riding.

For riders who want to change factory settings, the listed DPC010, DPC080, EKD01, VD04, and VD18MT displays support direct programming through the display or mobile app. That avoids a separate USB programming cable in the described workflow. VD03 and VD618 are listed as other display options for standard riding, so buyers should distinguish programming-capable displays from standard choices. This is a mid-drive conversion, and the supplied details list a 48V system and 750W specification, plus a tool kit.

Skip it if you prefer a front hub conversion instead of a mid-drive; BAFANG’s 48V 500W front hub kit uses a front-wheel layout.

This BAFANG mid-drive suits technically inclined riders who want to adjust motor settings through supported displays or an app. Check display compatibility before choosing it, particularly if programming access is central to your conversion.

Listed on Amazon as: BAFANG Mid Drive Kit 1000W 750W 500W BBS-HD BBS02B Ebike Conversion Kit

#2 · Best Front Hub

2. BAFANG 500W Front Hub Kit

• Warranty Description: 30 days return,365 days repair or replace

Best for: Commuters wanting a front hub.

Why it ranks #2: The 48V front hub lists 65N.m torque and compatibility with 20-inch, 26-inch, and 700C wheels, offering useful fit range.

BAFANG’s 48V, 500W front hub motor combines a stated 65Nm of torque with compatibility across 20-inch, 26-inch, and 700C bicycles, giving commuters several wheel-size options for an electric conversion. The fit details are unusually specific: the front dropouts must measure 100mm, with a 10mm front-fork aperture.

The three listed wheel sizes make this front-wheel kit relevant to a range of bicycle formats, while the 100mm dropout and 10mm fork-aperture measurements help narrow compatibility before installation. Its 65Nm torque is presented as supporting stable propulsion for city commuting and off-road rides. Because the motor mounts at the front, this is distinct from a rear-wheel conversion; the supplied information does not list battery contents, so plan the conversion around the stated kit details and battery guidance.

Skip it if you need a rear-wheel conversion; LARIDEN’s 20-inch 1500W rear hub kit provides that layout.

A sensible match for riders converting a compatible front fork, especially for city commuting or off-road use. Check the specified dropout and aperture measurements, and choose another layout if your project calls for a rear hub motor.

Listed on Amazon as: BAFANG 48V500W Front Hub Motor Kit for 20"/26"/700C Ebike Conversion Kit

#3 · Best 26-Inch Fit

3. Jeaieaiu 26-Inch Hub Kit

• Warranty Description: 2 years

Best for: 26-inch brushless rear-hub builds.

Why it ranks #3: This 48V 1000W rear-hub kit specifies a 26-inch wheel, PAS sensor, thumb throttle, controller bag, and seven speeds.

Jeaieaiu specifies a 48V, 1000W brushless, gearless rear hub motor for a 26-inch wheel, giving road, mountain, and commuter bicycle owners a defined wheel-based conversion option. The package lists a PAS sensor, thumb throttle, controller bag, flywheel, and English manual, covering several practical components for a DIY installation.

The 26-inch wheel and rear-hub format set the conversion’s main fit and layout requirements. Its 440rpm motor rating gives a rotational-speed specification, while the PAS sensor and thumb throttle provide two listed control inputs. A flywheel is included for the rear-wheel assembly, and the controller bag offers a designated place for the controller during setup. The kit lists seven speeds and a linear-pull brake style, details buyers should consider alongside their bicycle’s existing drivetrain and braking arrangement.

Skip it if you need a 20-inch rear-wheel conversion; LARIDEN’s 20-inch 1500W kit is specified for that smaller wheel size.

This kit suits DIY riders converting a 26-inch road, mountain, or commuter bicycle to rear-hub electric assistance. Check wheel and brake compatibility against its listed 26-inch size and linear-pull brake style before assembly.

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)

#4

4. Mahugde 1000W Hub Kit

• Warranty Description: 1
• Weight: 22.9 lb

Best for: 26-inch rear-wheel conversions.

Why it ranks #4: Its 48V 1000W rear-wheel conversion is specifically sized for a 26-inch bike and lists both a thumb throttle and pedal-assist sensor.

Mahugde’s 48V, 1000W electric conversion centers on a 26-inch rear hub motor wheel, giving owners of that wheel size a direct wheel-based upgrade path. A thumb throttle and pedal-assist sensor are included, so the listed controls support both throttle input and pedal-assisted operation on a compatible bicycle.

The 26-inch wheel specification is the clearest fit boundary: this kit is presented for a bicycle with that wheel size, rather than as a universal wheel conversion. Its 1000W motor and 48V system define the electrical setup, while the included thumb throttle and pedal-assist sensor provide two listed ways to engage assistance. The specifications identify an aluminum frame and an aluminum-magnesium alloy wheel, and list a coaster brake style; assess those details against the bicycle being converted.

Skip it if you ride a 20-inch bicycle; LARIDEN’s 20-inch rear hub conversion includes an LCD and seven gears.

Consider this Mahugde kit when converting a 26-inch bicycle and when both thumb-throttle and pedal-assist controls matter. Its wheel-size specification is a firm selection point, so it is not the fit for smaller-wheel builds.

Listed on Amazon as: Electric Bike Conversion Kit, 48V 1000W 26" E-Bike Hub Motor Wheel Kit Rear Wheel Powerful Motor with Thumb Throttle and Pedal Assistant Sensor, E-Bike Hub Motor Conversion Kit for 26 Inch Bike

#5 · Best 20-Inch Kit

5. LARIDEN 1500W Hub Kit

• Warranty Description: 90

Best for: 20-inch commuter conversions.

Why it ranks #5: The 48V 1500W rear hub is designed around a 20-inch wheel and includes an LCD, PAS sensor, brake levers, and seven-speed clutch.

LARIDEN combines a 20-inch rear hub wheel with a 1500W motor and an LCD display, giving short-trip and commuting builds a compact-wheel conversion with ride information onboard. The kit also lists a PAS sensor, brake levers, thumb speed control, and a seven-speed single-phase clutch, making its included operating components a notable part of the package.

The specified 20-inch wheel size sets the fit boundary, while the rear-hub layout places the motor in the replacement wheel. A PAS sensor supports pedal-assist operation, and the LCD gives the rider a display; the included thumb speed control provides another listed input. The seven-speed clutch and brake levers are included with the controller and rear wheel, supporting a more complete conversion workflow. The manufacturer states motor efficiency above 82%, and identifies commuting and short trips as intended uses.

Skip it if you need a 26-inch wheel conversion; Jeaieaiu’s 26-inch 1000W rear hub kit matches that wheel size.

A fit for 20-inch bicycle owners seeking a rear-wheel commuter conversion with PAS, display, and multiple included controls. The wheel dimension is the primary compatibility boundary; choose a different kit for a 26-inch bicycle.

Listed on Amazon as: 20" Electric Bicycle Conversion Kit, 48V 1500W Ebike Rear Hub Motor Wheel Kit with PAS Sensor & LCD Display, 7 Gears Electric Snow E-Bike Conversion Kit, Upgrade Hub Motor Kit

#6 · Highest Listed Power

6. HuaShuani 2000W Hub Kit

• Warranty Description: 30 Days
• Weight: 27.2 lb

Best for: Fat-tire hub conversion riders.

Why it ranks #6: Its 48V 2000W rear hub lists five speed settings, cruise function, and an LCD, though its stated 20-by-4-inch wheel fit is specialized.

A 48V, 2000W rear hub motor rated for 20-by-4-inch wheels is the defining feature of this HuaShuani kit, giving compatible fat-tire bikes a high-power conversion option. Its LCD reports speed, mileage, power, faults, voltage, and current, while five speed gears and fixed-speed cruise offer several ways to manage a ride.

The wheel-size specification narrows the fit to 20-by-4-inch wheels, so this is not a general-purpose wheel replacement. Once installed, the LCD’s speed, mileage, fault, voltage, and current readouts put several operating details in one place. Five adjustable speed gears let the rider select among settings, and fixed-speed cruise can maintain a selected pace. The listed 34 mph figure is a no-load speed, not a guaranteed road speed; the kit includes a hub motor and assembly accessories.

Skip it if you need a conversion for 26-inch wheels; Mahugde’s 48V 1000W rear-wheel kit is specified for 26-inch bikes.

This kit fits riders converting a 20-by-4-inch-wheel bicycle who value onboard ride information and selectable speed settings. Its wheel-size requirement is the key boundary; confirm that dimension before choosing it for a fat-tire conversion.

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

#7

7. FONSOLUM 250W Chain Kit

• Weight: 7.5 lb

Best for: Low-power chain-drive DIY builds.

Why it ranks #7: The 24V 250W chain-drive kit includes a controller, chain, freewheel, mounting plate, and throttle, and lists wheel fit from 16 to 28 inches.

FONSOLUM’s 24V, 250W brushed chain-drive kit covers wheels from 16 to 28 inches, giving DIY builders a broad listed wheel range for a lower-power conversion. The package includes a chain, freewheel, adapter, controller, mounting plate, accelerator handle, and left grip, providing key parts for assembling the drive and controls.

The chain-drive layout uses a motor, chain, freewheel, and adapter rather than a hub-wheel replacement, which shapes the installation workflow. Its stated 16-to-28-inch wheel range and 0.87-inch standard-handlebar fit help identify compatible bicycle dimensions before assembly. The included mounting plate and controller connect the motor and controls, while the listed cable length of about 4.92 feet can ease routing to the controller. An installation manual is referenced for buyers who need assembly guidance.

Skip it if you need a higher-output hub conversion; LARIDEN’s 20-inch 1500W rear hub kit supplies substantially more listed motor power.

A reasonable choice for DIY riders seeking a 250W chain-drive retrofit across the stated wheel range. The chain-based installation differs from a hub-wheel swap, so it suits builders prepared to work with the included drive components.

Listed on Amazon as: Electric Bicycle Motor Kit, 24V 250W E-Bike Conversion Kit, Electric Bicycle Retrofit w/Brushed Controller, DIY Powerful Electric Scooter Motor Kit Chain Drive Convert for 16-28''Wheel

#8

8. JAYGOVAN 80cc Gas Kit

Best for: Fuel-conscious gas-bike commuters.

Why it ranks #8: This 2-stroke gas conversion lists 2.58 HP, speeds up to 23.61 mph, and CDI ignition for buyers specifically seeking gasoline power.

The JAYGOVAN kit pairs an 80cc two-stroke engine with 2.58 hp and a stated top speed of 23.61 mph, giving riders a gas-powered way to add pace to everyday bicycle trips. Its listed fuel-use reference is about 0.53 gallons per 62.14 miles, a useful planning detail for longer rides between refueling stops.

This is a full-set refit kit, and its CDI ignition is identified as part of the package, so the conversion centers on a gas engine rather than an electric hub. The stated output and speed figures indicate its performance focus, while the fuel-use reference helps riders estimate range between stops. The supplied feature text also mentions easy starting, although it gives no starting procedure or compatibility measurements; check the bicycle and installation requirements before taking on the conversion.

Skip it if you want electric assistance and a hub-wheel conversion; BAFANG’s 48V 500W front hub kit is the electric option here.

A practical candidate for riders seeking a gas-engine bicycle conversion with stated output and fuel-use figures. It suits buyers comfortable with a full refit, but the listing does not specify frame dimensions, so verify the installation requirements for your bicycle.

Listed on Amazon as: 80cc Bicycle Engine Kit 2 Stroke Gas Bike Motor Kit Refit Full Set

#9

9. CUBELLIN 100cc Gas Kit

• Warranty Description: 2 year warranty against manufacturer defects
• Weight: 6.8 kg

Best for: Gas conversion range planners.

Why it ranks #9: The 100cc two-stroke kit lists a 36-tooth drive, 26-inch wheel size, CDI ignition, and a claimed top speed of 48 km/h.

CUBELLIN pairs a 100cc two-stroke engine with a 36-tooth drive setup and a stated top speed of 48km/h, giving gas-conversion shoppers concrete drivetrain and performance figures. Its listing also states fuel use of 150 miles per gallon and a 26-inch wheel size, making the bicycle fit and fuel claim easy to identify.

The 36-tooth specification describes the included drive setup, while the 26-inch wheel size narrows the stated bicycle fit. The engine is listed as single-cylinder, air-cooled, two-stroke, with CDI ignition, and the listing says assembly is required. It includes an English manual and assembly accessories, which supports a parts-and-instructions workflow for a DIY conversion. The stated 150 miles-per-gallon figure is a product claim rather than a guaranteed result for every bicycle or riding condition.

Skip it if you want a motorized bicycle without a gas engine; JAYGOVAN’s 80cc kit is another gas option with a stated fuel-use reference.

This kit fits DIY buyers seeking a 100cc gas conversion for a 26-inch bicycle and who value the listed 36-tooth setup. Account for required assembly and treat the stated fuel figure as a claim, not a universal result.

Listed on Amazon as: 100cc Bicycle Engine Kit 2 Stroke Motorized Bike Motor Kit

#10

10. Mahugde 110cc Gas Kit

Best for: DIY gas-bike builders.

Why it ranks #10: This 110cc two-stroke engine kit lists 3kW at 6000 rpm, but its fit description is less specific than the electric conversion options.

This Mahugde kit uses a 110cc two-stroke engine with a stated maximum output of 3kW at 6000rpm, giving DIY builders a high-output gas conversion for short journeys and commutes. Its fit guidance calls for a V-shaped frame with ample triangular space, and the listed 2L tank provides a clear fuel-capacity reference.

The V-frame and triangular-space guidance matters before assembly, since the engine kit needs room within the bicycle frame. Its foot-pedal starting mode and CDI ignition identify the listed starting and ignition setup, while air cooling and a single-cylinder, two-stroke design describe the engine configuration. The 2L tank gives buyers a capacity figure for planning refueling, but the supplied information does not provide a fuel-consumption rate or detailed wheel-fit measurements.

Skip it if you need electric assistance instead of a gas engine; BAFANG’s 48V 500W front hub kit is an electric conversion.

This kit suits hands-on builders seeking a gas-powered conversion for a bicycle with the specified V-frame clearance. Its engine configuration and tank capacity are clearly stated, but buyers should assess frame space before beginning a motorized-bike project.

Listed on Amazon as: Upgraded 110cc Bicycle Engine Kit, 2-Stroke Gas Motorized Bicycle Conversion Kit for 26" /28" Bikes Fit Petrol Gas Motor Kit Engine Refit Full Set with CDI for DIY Motorized Bicycle Bike (Black)