Best Bicycle Motor Kit: Compare 10 Gas Conversion Kits

#1 · Best Overall

1. IMAYCC 80cc Kit

Best for: First-time kit planning.

Why it ranks #1: The complete 80cc two-stroke kit is listed for 26–28-inch bikes, and its two-to-four-hour installation estimate and guidance help first-time installers plan.

A stated 2–4-hour installation and fine-tuning estimate gives the IMAYCC 80cc kit a practical planning advantage for DIY builders. It includes a two-stroke, single-cylinder gasoline engine kit and is listed for 26- to 28-inch mountain, cruiser, and road bikes.

The installation notes call for basic hardware skills and tools, so buyers can judge the hands-on commitment before starting. IMAYCC also recommends reading its instructions and consulting its installation video, which offers preparation guidance for first-time installers. The 80cc single-cylinder, two-stroke engine is packaged as a complete kit, and the listed compatibility covers several bike styles with 26- to 28-inch wheels. Its 26.4-pound listed weight is relevant when handling components during assembly.

Skip it if you want an engine larger than 80cc; the Tiozuiu 110cc kit is the larger listed option.

A DIY buyer preparing tools and setting aside time for installation can use the stated guidance to plan this 80cc conversion. Check that the bicycle falls within the listed 26- to 28-inch wheel compatibility.

Listed on Amazon as: IMAYCC Bike Motor Kit 80cc Motorized Bike Kit 2 Stroke Gas Bicycle Engine Conversion Kit Fit for 26-28" Bikes Red

#2 · Fuel-Efficiency Pick

2. JAYGOVAN 80cc Kit

Best for: Fuel-use-conscious 80cc kit.

Why it ranks #2: This 80cc two-stroke kit lists 2.1 kW output, up to 23.61 mph, CDI ignition, and a stated fuel-use reference for riders comparing specifications.

JAYGOVAN lists fuel consumption of approximately 0.53 gallons per 62.14 miles, making fuel use a concrete planning point for this 80cc two-stroke conversion. The kit also states 2.1 kW output, speeds up to 23.61 mph, and CDI ignition.

The stated fuel-use figure gives riders a reference for estimating refueling intervals on everyday trips, although the listing labels it a reference value. Output is listed as 2.1 kW, with a top speed of 23.61 mph and engine speed up to 5,000 rpm, so the product communicates both power and speed targets. CDI ignition is also specified. The title identifies a full-set bicycle engine kit, but the supplied details do not name a wheel-size or frame fit range.

Skip it if you need explicit wheel-size compatibility in the listing; the H-YEEU 80cc kit specifies 26- or 28-inch bikes and frame clearance.

A rider comparing stated fuel use and output for an 80cc conversion may find the specifications useful for planning. The listing does not give a wheel-size or frame range, so that fit information remains a boundary.

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

#3 · Broad Bike Fit

3. O-WareBaby 80cc/100cc Kit

• Warranty Description: If you encounter any quality issues, please…

Best for: Digital-speed display included.

Why it ranks #3: The listing covers 80cc or 100cc engines and most 26- or 28-inch V-frame bikes, with a detailed parts list including CDI, chain, throttle, and clutch lever.

A digital speedometer is this O-WareBaby kit’s defining convenience, giving riders a speed display as part of an 80cc or 100cc two-stroke conversion package. The listing covers most 26- or 28-inch V-frame bicycles and names several bicycle styles as examples.

The digital speedometer adds a listed way to monitor speed during rides, while the choice of 80cc or 100cc engine configuration gives buyers two displacement options within the product title. The package description names the carburetor, CDI, chrome muffler, clutch cable, drive chain, chain guard, and twist throttle with cable and grip. That component detail helps buyers understand the conversion workflow and included hardware. Compatibility is stated for most 26- or 28-inch V-frame bikes, including mountain, road, gravel, and beach bikes.

Skip it if you want a single stated engine displacement; the JAYGOVAN kit is listed specifically as an 80cc engine kit.

A rider wanting a speed display and a broadly described component package may consider this conversion for a listed V-frame bicycle. Its title gives two engine sizes, so verify the selected configuration details before assembly.

Listed on Amazon as: Bicycle Motor Kit 80cc/100cc 2 Stroke Engine Motorized Bike Motor Kit for 26"-28" Bicycles Petrol Gas Powered Bike Motor Kit Upgrade with Digital Speedometer

#4 · Frame-Fit Details

4. H-YEEU 80cc Kit

• Warranty Description: /

Best for: Frame-clearance-specific fit.

Why it ranks #4: It specifies 26- or 28-inch V-frame fit, 9–11 inches of clearance, and 25–29 mm frame-tube diameter, useful measurements before attempting installation.

H-YEEU specifies frame geometry—9–11 inches of clearance between the bottom bracket and top bar, with 25–29 mm frame tubes—making fit assessment central to this 80cc kit. It is listed for most 26- or 28-inch bikes with a standard V-frame.

The unusually specific clearance and tube-diameter requirements help buyers screen a bicycle before taking on installation, rather than relying on wheel size alone. The listing describes a complete kit with needed hardware, supporting a single-package conversion workflow. It also states fuel consumption of 2.5 litres per 100 km and a top speed of 45 km/h, figures useful for comparing operating expectations. The engine is two-stroke and 80cc; the listed compatibility includes 26- and 28-inch bikes.

Skip it if you cannot meet the stated frame measurements; the IMAYCC 80cc listing gives wheel-size compatibility without these clearance dimensions.

A builder able to measure a standard V-frame can use H-YEEU’s detailed clearance and tube guidance to assess fit before assembly. Its 26- or 28-inch wheel range does not replace those frame requirements.

Listed on Amazon as: 2 Stroke 80cc Cycle Bicycle Gas Motorized Gasoline Engine Motor Kit

#5 · Tunable Carburetor

5. YUNLAIGOTOP 100cc Kit

• Warranty Description: Free warranty within one year for…

Best for: Tunable carburetor setup.

Why it ranks #5: This 100cc kit lists fit for 26–28-inch bikes and includes a tunable carburetor with adjustable jets, plus a 44-tooth sprocket and upgraded CDI.

A re-jettable carburetor is the defining feature of this 100cc YUNLAIGOTOP kit, giving mechanically inclined riders adjustment points for tuning fuel delivery. The package also includes an upgraded CDI and a 44-tooth sprocket, while its stated fit covers 26- to 28-inch bicycles.

The carburetor provides a main jet that can be re-jetted, plus a pilot jet and idle adjustments, making mixture and idle tuning part of the setup workflow. Air cooling avoids adding a liquid-cooling system to the bicycle conversion. Its listed 1.9 kW maximum power and 48 km/h maximum speed describe the engine’s stated output, while the 44-tooth sprocket and upgraded CDI are included in the kit. The stated fit is for 26- to 28-inch bikes.

Skip it if you want a clearly stated basic installation time; the IMAYCC 80cc kit lists a 2–4-hour installation estimate.

A hands-on rider seeking a 100cc gasoline conversion with adjustable carburetor settings may value this package. Its listed fit is limited to 26- to 28-inch bikes, and carburetor tuning is part of the ownership workflow.

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

#6

6. Tiozuiu 100cc Four-Stroke

• Warranty Description: 1 Year

Best for: Four-stroke hand-start option.

Why it ranks #6: Unlike the two-stroke alternatives, this listing specifies a 100cc four-stroke engine, hand start, 3.5 hp, 3600 rpm, and a 44-tooth sprocket.

A four-stroke engine distinguishes this Tiozuiu 100cc kit from the two-stroke conversions in this roundup, while its title specifies hand start and air cooling. The full set includes assembly accessories and an English manual, supporting a documented setup workflow.

The four-stroke configuration gives buyers a clear engine-type distinction when comparing conversion kits, and the hand-start specification identifies its listed starting method. Its 3.5-horsepower output and 3,600-rpm rating are stated in the title, alongside a 44-tooth sprocket. The included English manual and assembly accessories provide reference material and components for setup. At 42.3 pounds, the listed kit weight is a practical handling consideration during installation; the supplied facts do not state a wheel-size fit range.

Skip it if you need stated 26- or 28-inch compatibility; the Tiozuiu 110cc two-stroke kit lists that fit range.

A buyer specifically seeking a four-stroke bicycle conversion with hand start can assess this kit using its stated power, speed, and included manual. Its listed facts do not identify a wheel-size fit range.

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

#7

7. Tipyoumall 110cc Kit

• Warranty Description: 2

Best for: Fuel-economy-focused 110cc.

Why it ranks #7: The 110cc two-stroke kit lists a 36-tooth sprocket, 396-pound maximum weight recommendation, and 150 miles per gallon claim, but gives less frame-fit detail.

Tipyoumall states 150 miles per gallon for this 110cc kit, putting fuel economy at the center of its appeal to riders comparing gasoline conversions. It also includes a 36-tooth sprocket and identifies four bolts for attaching the engine to the bicycle frame.

The 150-mpg figure is a listed efficiency claim, while the stated break-in mixture calls for 8 ounces of two-stroke oil per gallon of gas during that period. That guidance matters during initial operation. Four engine-mounting bolts are specified, and the package includes a tool kit, giving builders both an assembly detail and a listed accessory. The maximum recommended load is 396 pounds. The title lists compatibility with 26- to 28-inch bikes, but the supplied facts do not specify frame-clearance dimensions.

Skip it if you need frame-clearance dimensions before buying; the H-YEEU 80cc kit specifies clearance and tube diameter.

A rider focused on the listed fuel-economy figure and willing to follow the stated break-in mixture may consider this 110cc kit. Confirm the bicycle’s fit against the listed 26- to 28-inch range.

Listed on Amazon as: 110cc Bicycle Engine Kit, Updated 2 Stroke Motorized Bike Engine Motor Kit for 26"- 28" Bikes Bicycles Petrol Gas Powered Super Fuel-efficient Fit Modified Full Set

#8

8. Mahugde 110cc Kit

Best for: High-output 110cc conversion.

Why it ranks #8: This 110cc two-stroke kit specifies CDI ignition, 3 kW at 6000 rpm, a 2-liter fuel tank, and fit for many V-frame bikes with triangular space.

A stated maximum output of 3 kW at 6,000 rpm gives the Mahugde 110cc kit a clear performance specification for commute and short-trip conversions. It pairs that output with air cooling, CDI ignition, and a foot-pedal starting mode.

The 3 kW maximum-power rating and 6,000-rpm figure describe the engine’s listed output, while CDI ignition identifies its ignition system. A 2-litre fuel tank is specified, giving riders a concrete capacity for planning refills. The product is described as a single-cylinder, two-stroke engine with air cooling and foot-pedal start. Its compatibility is described for most V-shaped frames with ample triangular space, including mountain, road, and cruiser bikes, so frame shape and available space matter during fit assessment.

Skip it if you need a specified 26- or 28-inch wheel range; the H-YEEU 80cc kit lists those sizes and frame measurements.

A rider seeking a 110cc conversion with stated 3 kW output and a 2-litre tank can assess this Mahugde kit for commuting or short journeys. Its fit depends on a V-frame with ample triangular space.

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)

#9

9. Ubnffsv 100cc Kit

Best for: Longer-range tank capacity.

Why it ranks #9: The 100cc two-stroke listing includes a 36-tooth sprocket, 0.53-gallon tank, and 440-pound maximum load claim, but provides limited bike-fit measurements.

A 0.53-gallon fuel tank is the key practical feature of this Ubnffsv 100cc kit, with the listing positioning its capacity for longer journeys between refills. The package pairs that tank with a 36-tooth sprocket and states compatibility with most 26- or 28-inch bikes.

The listed tank capacity of 0.53 gallons gives riders a specific fuel-volume reference when planning outings, while stated consumption of about 0.66 gallons per 100 km helps frame expected use. The 36-tooth sprocket is identified as part of the setup, and the listing gives a maximum load of 440 pounds. Air cooling and CDI ignition are named in the title. These details suit buyers comparing range-related figures and load guidance before assembling a bicycle conversion.

Skip it if you want a 110cc kit with a stated 150-mpg figure; the Tipyoumall 110cc kit lists that fuel-economy claim.

A rider prioritizing a larger stated tank and a 36-tooth sprocket may consider this 100cc conversion for longer outings. Review the listed 440-pound load limit and the stated 26- or 28-inch bike fit.

Listed on Amazon as: 100cc Bicycle Engine Kit, 2 Stroke Upgraded Bike Motor Kit Air-Cooling Gas Engine Motorized Bicycle Kit with CDI Ignition Mode & 36-Tooth Sprocket for Most 26inch/28inch Bikes Scooter

#10

10. Tiozuiu 110cc Kit

Best for: Higher-rev short-trip conversion.

Why it ranks #10: This 110cc two-stroke kit claims fit for 26- or 28-inch bikes and operation up to 6000 rpm, but supplies fewer installation and compatibility specifics.

A stated operating speed reaching 6,000 rpm gives this Tiozuiu 110cc kit its clearest distinction for riders seeking motor assistance on commutes and short trips. The package is described as complete, with air cooling and a CDI system identified in the title.

The advertised 6,000-rpm figure frames this kit around adding engine assistance to everyday rides, while its 110cc two-stroke configuration supplies the conversion’s stated displacement. Air cooling and CDI ignition are named in the product title, helping buyers identify the engine and ignition types before purchase. The listing says the kit includes parts and accessories for conversion, and identifies compatibility with 26- or 28-inch bikes. The available information does not specify a detailed installation time.

Skip it if you need a stated installation estimate before beginning; the IMAYCC 80cc kit lists 2–4 hours.

Commuters and short-trip riders seeking a 110cc gas conversion can consider this kit for its stated 6,000-rpm operation. Its listed fit is for 26- or 28-inch bikes, and installation timing is not specified.

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