Best Gas Motor Conversion Kit For Bicycle: Compare 10 Kits

#1 · Best Overall

1. ZLLIEZQU 110cc Conversion Kit

• Weight: 24.7 lb

Best for: High-output 110cc DIY riders.

Why it ranks #1: Its 110cc engine lists 3kW at 6,000 rpm, CDI ignition, a 2L tank, and compatibility with 26- or 28-inch bikes.

A stated 3 kW at 6,000 rpm and claimed maximum speed of 55 km/h give ZLLIEZQU’s 110cc conversion a clearly specified output profile. Its air-cooled, single-cylinder two-stroke engine uses CDI ignition and is listed for 26- or 28-inch bikes, with a 2-liter fuel tank.

The 2-liter tank and 16.4:1 total transmission ratio make the fuel capacity and drivetrain specification explicit for a DIY builder planning a conversion. CDI ignition and foot-pedal starting define the starting arrangement, while the 6:1 compression ratio supplies another stated engine detail. At 24.7 pounds net, the kit’s listed weight is relevant when handling parts and considering the added mass. The 55 km/h figure is a claimed maximum, not a guaranteed riding speed.

Skip it if you want a speedometer included; the Bikerid 80cc 2-Stroke Bike Engine Kit lists one with its conversion.

This suits a DIY rider seeking a high-output 110cc setup for a 26- or 28-inch bike, with explicit tank, ignition, and drivetrain specifications. Consider its 24.7-pound weight and treat the speed claim as a maximum.

Listed on Amazon as: 110CC Bicycle Engine Conversion Kit, Gas-Powered Bicycle Conversion Kit

#2 · Best Specified Output

2. Mahugde 110cc Engine Kit

Best for: V-frame 110cc DIY conversions.

Why it ranks #2: This 110cc kit specifies 3kW at 6,000 rpm, a 2L tank, CDI ignition, and a 16.4:1 total transmission ratio.

A 3 kW, 6,000-rpm specification gives Mahugde’s 110cc kit a concrete performance profile for DIY motorized-bicycle builds. Its listing targets most V-shaped frames with ample triangular space and names mountain, road, and cruiser bikes, making frame geometry an important part of the selection.

The 2-liter tank provides a stated capacity for planning fuel stops, while the CDI ignition and foot-pedal start identify the ignition and starting workflow. Air cooling and a single-cylinder, two-stroke design describe the engine arrangement; its listed 16.4:1 total transmission ratio further specifies the drivetrain setup. Compatibility is framed around V-shaped bicycles with ample triangular space, so checking the donor frame’s available area is central to choosing this kit.

Skip it if you need a kit with stated 26- to 28-inch wheel compatibility; the IMAYCC 80cc kit lists that range.

Consider this for a DIY builder with a V-frame mountain, road, or cruiser bicycle and sufficient triangular space. Its 110cc format, 2-liter tank, and pedal start are useful specifics, but frame geometry remains the fit boundary.

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)

#3 · Tunable Carburetor

3. YUNLAIGOTOP 100cc Engine Kit

Best for: Tunable carburetor builders.

Why it ranks #3: The full kit includes a 44-tooth sprocket, upgraded CDI, and a carburetor with adjustable jets and idle controls.

A re-jettable carburetor is the defining feature of YUNLAIGOTOP’s 100cc kit, giving hands-on builders adjustment points for dialing in fuel delivery. The package also includes a 44-tooth sprocket and upgraded CDI, combining key conversion components for 26- to 28-inch bicycles in one kit.

The carburetor has a handlebar choke lever, main and pilot jets, a copper oil needle, and idle adjustment screws, so setup offers several defined tuning controls rather than a fixed carburetor. Its CDI ignition and air-cooled, 1.9 kW engine establish the ignition and cooling approach, while the included 44-tooth sprocket supports the drivetrain conversion. The listing specifies kick starting and a maximum speed of 48 km/h; the two-stroke setup calls for two-stroke machine oil.

Skip it if you want a hand-start four-stroke; the Tiozuiu 100CC 4-Stroke kit lists hand start and 3.5HP output.

Choose this for a 26- to 28-inch bicycle conversion when you value carburetor tuning controls and a packaged sprocket and CDI. Account for its kick-start method and two-stroke oil requirement when planning the build.

Listed on Amazon as: 100cc Bicycle Engine Kit 2 Stroke Motorized Bicycle Engine Motor Kit Gas Bicycle Engine Conversion Kit with Air-Cooling, Bike Motor Kit Fit for 26"-28" Bikes

#4 · Longest Listed Range

4. AKSDSGA 100cc Engine Kit

• Weight: 22.4 lb

Best for: Longer-range 100cc riders.

Why it ranks #4: Its 100cc kit states a 0.53-gallon tank, maximum speed of 28mi/h, and a listed 440-pound maximum load.

A 0.53-gallon fuel tank paired with a claimed 28 mph maximum speed makes AKSDSGA’s 100cc kit notable for riders balancing range and pace. The listing also gives a 440-pound maximum loading capacity and a 44-tooth configuration, offering concrete planning details for a conversion.

The tank capacity and stated fuel consumption of around 0.66 gallons per 100 km help set expectations for refueling, although actual use depends on riding conditions. The 100cc two-stroke engine uses air cooling and a CDI system, while its 44-tooth sprocket detail identifies a drivetrain component in the conversion. Compatibility is specified for 26- or 28-inch bicycles, and the 440-pound maximum loading figure adds a stated limit to account for when considering the finished bike and rider.

Skip it if you prioritize a speedometer included in the kit; the Bikerid 80cc 2-Stroke Bike Engine Kit lists one.

Choose this for a 26- or 28-inch bicycle conversion when the tank size, load limit, and stated speed are useful planning figures. Factor in the listed fuel consumption and respect the stated maximum loading capacity.

Listed on Amazon as: 100CC Bicycle Engine Kit 2 Stroke Air Cooling Gas Motor Bike Kit w/CDI System, 44 Teeth Motorized Bike Engine Motor Conversion Kit for 26" or 28" Bicycles

#5 · Fuel Use Detail

5. Mahugde 80cc Engine Kit

Best for: Fuel-conscious V-frame commuters.

Why it ranks #5: This 80cc 2-stroke includes CDI ignition and a 0.53-gallon tank; its listing gives an estimated fuel consumption figure for reference.

A listed fuel-use estimate of 0.53 gallons per 62.14 miles distinguishes Mahugde’s 80cc two-stroke kit for riders comparing operating consumption. Its 0.53-gallon tank and CDI electronic ignition also speak to refueling intervals and starting workflow, while the listing identifies 26- to 28-inch V-frame bicycles as its intended fit.

Mahugde says the CDI system starts when the rider presses the pedal, making the starting method explicit for a conversion build. The 0.53-gallon tank is presented as supporting longer intervals between stops, and the stated consumption estimate provides a reference for planning rides, not a guaranteed result. Its claimed top speed is 23.61 miles per hour. Buyers should keep the specified V-frame and 26- to 28-inch compatibility in view when choosing a donor bicycle.

Skip it if you ride a different frame style; the Bikerid 80cc 2-Stroke Bike Engine Kit lists broad 26- to 28-inch bicycle compatibility.

Pick this for a V-frame bicycle in the listed 26- to 28-inch range if fuel-use estimates and pedal starting matter. The stated consumption is for reference, and the frame-style boundary is central to fit.

Listed on Amazon as: 80cc 2 Stroke Bicycle Engine Kit, Gas Motorized Bicycle Conversion Kit Single Cylinder Air-Cooled Engine Gasoline Engine Motor Kit with CDI Ignition & Fuel Tank for 26-28 In V-Frame Bicycles

#6

6. Bikerid 80cc Engine Kit

Best for: Speedometer-equipped commuters.

Why it ranks #6: The 80cc kit lists a speedometer and compatibility with 26- to 28-inch bikes, alongside a stated maximum speed of 38km/h.

An included speedometer sets Bikerid’s 80cc kit apart for riders who want speed information alongside a gas conversion. The listing also specifies compatibility with most 26- to 28-inch bicycles and a maximum speed of up to 38 km/h, positioning it for commuting, errands, and weekend rides.

The stated 26- to 28-inch compatibility lets owners consider reusing an existing bicycle, and the product says it can convert a regular bike without major frame modifications. Its speedometer adds an on-bike reference while riding, while the claimed high-torque output and maximum 38 km/h speed indicate the performance the listing targets. These are useful planning points, but fit still depends on a bicycle within the stated size range and the conversion’s installation requirements.

Skip it if you need a stated fuel-tank capacity or fuel-use estimate; Mahugde’s 80cc bicycle engine kit lists both.

This fits a commuter or errand rider seeking a speedometer-equipped 80cc conversion for a 26- to 28-inch bicycle. Keep the wheel-size range in mind, and do not treat the listed top speed as a guaranteed riding speed.

Listed on Amazon as: 80cc 2 Stroke Bicycle Engine Kit, Gas Motorized Bicycle Conversion Kit with Speedometer, Fits 26" – 28" Bikes

#7

7. IMAYCC 80cc Engine Kit

• Weight: 26.4 lb

Best for: Hands-on 80cc installers.

Why it ranks #7: This 80cc kit lists a 2.1kW rating and fit for 26- to 28-inch mountain, cruiser, and road bikes, with installation guidance noted.

IMAYCC gives buyers a rare practical installation estimate: allow about two to four hours for fitting and fine-tuning, with basic hardware skills and tools required. Its 80cc, two-stroke single-cylinder engine kit is listed for 26- to 28-inch mountain, cruiser, and road bikes.

The stated installation time helps a first-time builder plan a dedicated work session, while the recommendation to read the instructions and consult the named YouTube search gives a preparation path. Its 80cc single-cylinder gasoline engine defines the conversion type, and the listed 2.1 kW wattage provides a power specification. Compatibility spans 26- to 28-inch mountain, cruiser, and road bikes, giving owners of those bicycle types a clear starting point for evaluating fit.

Skip it if you want a kit without a stated hands-on installation requirement; the Bikerid 80cc kit emphasizes fit and speedometer instead.

This is a fit for mechanically comfortable riders planning an 80cc conversion on a listed 26- to 28-inch bike. Set aside the stated installation and fine-tuning time, and use the instructions before beginning.

Listed on Amazon as: IMAYCC 2 Stroke 80CC Bicycle Engine Kit Gas Motorized Bike Motor Kit

#8

8. Tiozuiu 110cc Engine Kit

• Weight: 24.7 lb

Best for: RPM-focused short-trip riders.

Why it ranks #8: The 110cc 2-stroke listing specifies air cooling, CDI, and fit for 26- or 28-inch bikes, but provides fewer decisive output details.

A stated operating speed of up to 6,000 rpm is the concrete draw of Tiozuiu’s 110cc two-stroke kit, aimed at adding motor assistance to commutes and short trips. It is listed as an air-cooled bicycle conversion kit with a CDI system and compatibility for 26- or 28-inch bikes.

The 110cc engine and air-cooling identify the motor format, while the CDI system supplies its listed ignition type. The stated 6,000-rpm figure gives buyers a specific engine-speed reference when comparing conversion options, though it is not a stated road-speed figure. Tiozuiu describes the kit as complete with parts and accessories, which supports a single-kit conversion workflow; its 24.7-pound listed weight is also worth accounting for when handling components during installation.

Skip it if you need a listed road-speed and tank-capacity figure; the AKSDSGA 100CC Bicycle Engine Kit specifies both.

This suits riders considering a 110cc gas conversion for commutes or short trips on a 26- or 28-inch bike. Treat 6,000 rpm as an engine-speed specification, not a promised road speed.

Listed on Amazon as: 110CC Bicycle Engine Kit, 2-Stroke Gas Motorized Bicycle Conversion Kit, Gas Powered Engine Motor Kit with Air Cooling and CDI System,Gas Bike Bicycle Motor Engine Kit Fit for 26"or 28" Bikes, Black

#9

9. Frederimo 100cc Engine Kit

Best for: Tunable 100cc conversion seekers.

Why it ranks #9: This 100cc air-cooled 2-stroke is described as a complete conversion set and claims a maximum speed of 48km/h.

An upgraded, tunable carburetor is the clearest differentiator of Frederimo’s 100cc two-stroke conversion kit, giving builders an adjustable fuel-delivery component. The listing says the full kit includes the parts and accessories for a regular-bike conversion and claims speeds up to 48 km/h, while leaving bicycle-fit specifics limited.

The 100cc air-cooled engine and tunable carburetor define the core conversion setup, while the claimed 48 km/h speed offers a stated performance reference. Frederimo describes the package as a complete kit with parts and accessories, which can simplify gathering conversion components. The supplied information does not specify a bicycle wheel-size or frame range, so buyers should not infer a particular fit from the 100cc rating; that uncertainty matters when selecting a donor bike.

Skip it if you need explicit 26- to 28-inch compatibility; the YUNLAIGOTOP 100cc Bicycle Engine Kit lists that fit range.

This may suit a builder prioritizing a tunable carburetor and a stated 48 km/h claim in a 100cc conversion package. The supplied fit information does not identify a wheel-size range, so that remains a key selection boundary.

Listed on Amazon as: 100cc Bicycle Engine Kit, 2 Stroke Bike Motor Kit Petrol Gas Motor Conversion Kit Air-Cooling Motorized Bicycle Kit Super Fuel-efficient Modified Full Set 36

#10

10. Tiozuiu 100cc 4-Stroke Kit

• Weight: 42.3 lb

Best for: Four-stroke hand-start builders.

Why it ranks #10: It is the only 4-stroke option and lists a 3.5HP engine at 3,600 rpm, but its 42.3-pound weight is substantially higher.

A four-stroke engine with hand start distinguishes this Tiozuiu conversion from the two-stroke kits in this roundup, giving builders a different engine and starting format to consider. The listing specifies 3.5 horsepower at 3,600 rpm, a 44-tooth sprocket, and an assembly manual with accessories.

The 3.5HP, 3,600-rpm specification identifies the engine’s listed output and operating speed, while the 44-tooth sprocket is a concrete drivetrain component included in the full set. Hand starting determines the starting method, and air cooling describes the engine’s cooling approach. An English manual and assembly accessories are included to support the installation workflow. At 42.3 pounds, its listed weight is a significant handling consideration during a bicycle conversion.

Skip it if you want a lighter listed kit; the AKSDSGA 100CC Bicycle Engine Kit is listed at 22.4 pounds.

Consider this for a builder specifically seeking a four-stroke, hand-start bicycle conversion with a manual and 44-tooth sprocket. Its 42.3-pound listed weight is an important handling boundary during assembly and installation.

Listed on Amazon as: 100CC Bicycle Engine Kit, 4-Stroke Gas Motorized Ebike Conversion Kit, Hand Start Air-Cooling Bike Motor Kit, Single Cylinder 3.5HP Bike Motor 3600 RPM, 44-Tooth Sprocket Full Set