Best Gas Motor For Bicycle: Compare 10 Conversion Kits

#1 · Best Overall

1. JAYGOVAN 110cc Kit

• Warranty Description: 1
• Size: Large

Best for: Quick-start 110cc conversion riders.

Why it ranks #1: Lists 26- and 28-inch bike fit, a 34.15 mph claimed top speed, CDI ignition, and included conversion components for a well-specified 110cc option.

Foot-pedal starting and a stated noise level of about 75 dB distinguish this JAYGOVAN 110cc kit for buyers considering startup and operating sound. It is listed for 26- and 28-inch bicycles, with a maximum engine speed of 6,000 rpm and a stated top speed of 34.15 mph.

The foot-pedal starting mode and CDI electronic ignition define the listed startup system, while the stated noise level is approximately 75 dB. Those details help buyers assess how starting and sound fit their intended outdoor use. The kit also includes a 2-liter fuel tank and a 415 heavy-duty chain, giving concrete fuel-storage and drive components to consider. Its 110cc engine is listed for 26- and 28-inch bikes, with speeds up to 34.15 mph.

Skip it if you want a 4-stroke engine; Tiozuiu’s 100cc conversion kit is listed as four-stroke.

This suits riders seeking a 110cc conversion with pedal starting, a 2-liter tank, and a listed 26- or 28-inch bike fit. Keep its 34.15 mph top-speed claim and approximately 75 dB noise figure in view.

Listed on Amazon as: 110cc Bicycle Engine Kit, 2-Stroke Gas Motorized Bicycle Conversion Kit Fit for 26" /28" Bikes, Petrol Gas Motor Kit Engine Refit Full Set with Super Fuel-efficient, Powerful Engine

#2 · Highest Load Rating

2. CUBELLIN 100cc Kit

• Weight: 6.8 kg
• Warranty Description: 2 year warranty against manufacturer defects
• Size: 36 Teeth

Best for: 36-tooth sprocket seekers.

Why it ranks #2: Combines a 36-tooth sprocket, listed 26-inch wheel size, complete assembly accessories, and a stated 440-pound maximum load recommendation.

A 36-tooth sprocket and stated top speed of 48 km/h give this CUBELLIN 100cc kit two specific points for comparing bicycle conversions. The package is described as including assembly parts and accessories, making it relevant to buyers planning a complete motor-and-sprocket setup.

The 100cc, single-cylinder, air-cooled, two-stroke engine is paired with a 36-tooth sprocket, while the listing states a top speed of 48 km/h. Those details help buyers evaluate the intended drivetrain and performance profile together. Its stated fuel consumption is 150 miles per gallon, and the maximum load capacity is 200 kg. Assembly is required, but the listed contents include accessories for assembly and an English manual to support the setup process.

Skip it if you need an 80cc kit with a stated 26–28-inch fit range; IMAYCC’s 80cc kit lists those bike sizes.

This fits riders comparing a 100cc conversion with a 36-tooth sprocket and stated 48 km/h top speed. Factor in required assembly, and consider the listed 200 kg maximum load capacity when assessing the intended use.

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

#3 · High-RPM 110cc

3. H-YEEU 110cc Kit

• Weight: 25.9 lb
• Warranty Description: /
• Size: /

Best for: Higher-output 110cc comparisons.

Why it ranks #3: This 110cc two-stroke is listed for most 26- and 28-inch bicycles and specifies a maximum 6000 rpm and 150 miles per gallon.

A rated output of 3.5 kW at 5,000 rpm gives this H-YEEU 110cc engine a specific power figure for buyers comparing larger bicycle conversions. The listing also names a single-cylinder, air-cooled, two-stroke design and compatibility with most 26- and 28-inch bicycles.

The 110cc engine is described as single-cylinder, air-cooled, and two-stroke, with rated power of 3.5 kW at 5,000 rpm and maximum power listed as 3.8 kW at 6,000 rpm. That distinction helps buyers separate its rated and maximum figures. The stated fuel efficiency is 150 miles per gallon, and the listing calls for two-stroke gasoline engine oil. Compatibility is described for most 26- and 28-inch bicycles, including mountain bikes, road bikes, and cruisers.

Skip it if you prefer a four-stroke bicycle conversion; Tiozuiu’s 100cc kit is listed with a four-stroke engine.

This fits buyers comparing 110cc engines by rated and maximum power, with a listed fit for most 26- and 28-inch bikes. Its two-stroke design requires the specified engine oil, a key operating consideration.

Listed on Amazon as: 110cc 2-Stroke Bicycle Gasoline Engine Motor Kit Motorized (Sliver)

#4

4. Tipyoumall 110cc Kit

• Weight: 11 kg
• Warranty Description: 2
• Size: Large

Best for: Fuel-conscious 110cc conversions.

Why it ranks #4: Offers 110cc displacement, a 36-tooth sprocket, and stated 26- to 28-inch bike fit, though its supplied kit details are less complete.

A 110cc engine paired with a stated 150 miles per gallon gives this Tipyoumall kit a clear appeal for riders seeking a motorized bicycle with fuel use in mind. Its 36-tooth sprocket and four-bolt engine attachment provide concrete details for assessing the conversion and frame installation.

The 36-tooth sprocket is a useful drivetrain specification to check while planning the conversion, and the listing says four bolts attach the engine to the bike frame. The stated 150 miles per gallon makes fuel consumption a central part of its appeal. During the break-in period, the engine requires eight ounces of two-stroke oil per gallon of gas, so operation involves preparing the specified fuel-and-oil mixture rather than filling with gasoline alone.

Skip it if you want a listed engine size below 110cc; IMAYCC’s 80cc kit is a smaller-displacement option.

This suits riders considering a 110cc bicycle conversion who value the stated fuel efficiency and a 36-tooth sprocket. Account for the required two-stroke oil mixture during break-in and the four-bolt frame attachment when planning installation.

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

#5 · Tunable Carburetor

5. YUNLAIGOTOP 100cc Kit

• Warranty Description: Free warranty within one year for…

Best for: Tunable-carburetor converters.

Why it ranks #5: Its 100cc conversion set includes a 44-tooth sprocket, upgraded CDI, and a carburetor with adjustable jets and idle controls.

A carburetor with a re-jettable main jet and an idle-air screw makes this YUNLAIGOTOP 100cc kit notable for buyers who want adjustment points. The included 44-tooth sprocket and upgraded CDI add specific drivetrain and ignition details to consider during conversion planning.

The carburetor’s listed choke lever, re-jettable main jet, pilot jet, copper oil needle, idle RPM screw, and idle-air screw provide multiple stated adjustment features. Those details matter to buyers comfortable working with carburetor settings. The kit also includes a 44-tooth sprocket and upgraded CDI, while the engine is described as air-cooled and two-stroke, with a stated maximum speed of 48 km/h. Together, these features help define its setup and operating profile.

Skip it if you want a listed 80cc engine with a stated 26–28-inch fit range; IMAYCC’s kit specifies that range.

Choose this for a 100cc conversion if carburetor adjustment points and the included 44-tooth sprocket suit your setup plans. Its re-jettable carburetor offers tuning features, so account for that adjustment work when choosing a kit.

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. JAYGOVAN 80cc Kit

Best for: Everyday 80cc range seekers.

Why it ranks #6: A straightforward 80cc two-stroke kit with listed 2.58 horsepower, CDI ignition, and claimed top speed of 23.61 mph.

A stated fuel-use figure of about 0.53 gallons per 62.14 miles gives the JAYGOVAN 80cc kit a concrete range-oriented selling point. Its listed 2.58 horsepower and top speed of 23.61 mph help riders compare that fuel claim with the engine’s stated output.

The 80cc, two-stroke kit is listed at 2.58 horsepower, with speeds up to 23.61 mph and engine speed up to 5,000 rpm. These figures give buyers a specific performance profile to weigh against the stated fuel consumption of about 0.53 gallons per 62.14 miles. The listing also identifies CDI ignition, a feature relevant to the ignition system when planning a conversion. Treat the fuel figure as a reference value, as the product information describes it that way.

Skip it if you want a listed 110cc engine and 6000 rpm maximum; JAYGOVAN’s 110cc kit specifies both.

This is for riders comparing an 80cc kit by its stated output, speed, and reference fuel-use figure. Its 23.61 mph top-speed claim and 5,000 rpm figure define the listed performance boundary for planning a conversion.

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

#7

7. IMAYCC 80cc Kit

• Weight: 26.4 lb

Best for: First-time kit planners.

Why it ranks #7: Specifies an 80cc engine for 26- to 28-inch mountain, cruiser, and road bikes, and notes an estimated two to four hours for installation.

An unusually explicit installation estimate sets this IMAYCC 80cc kit apart: the listing allows about two to four hours for installation and fine-tuning. That gives mechanically minded buyers a practical planning point before taking on a two-stroke conversion for a 26–28-inch bike.

The kit is described as a complete 80cc, two-stroke, single-cylinder gasoline engine set, with compatibility listed for 26–28-inch mountain, cruiser, and road bikes. That range helps buyers identify candidate bicycle types before starting work. IMAYCC also says installation requires basic hardware skills and tools, and estimates two to four hours for installation and fine-tuning. Its advice to consult the instructions and its installation video gives first-time installers a stated preparation path.

Skip it if you want a listed 110cc engine; H-YEEU’s 110cc gasoline engine kit offers the larger stated displacement.

A buyer with basic hardware skills who wants an 80cc conversion for a 26–28-inch mountain, cruiser, or road bike can use the stated installation estimate to plan the work. Allow time for fine-tuning after assembly.

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

#8

8. BQDRTMZ 80cc Kit

• Weight: 12 lb
• Warranty Description: 1 year warranty against manufacturer defects

Best for: Heat-dissipation-focused riders.

Why it ranks #8: Lists an 80cc, 1.65-horsepower two-stroke with aluminum and iron construction, but provides fewer bicycle-fit and kit-component details.

Multiple heat-dissipation holes are a specific feature of this BQDRTMZ 80cc engine, giving buyers a concrete cooling detail to weigh. The kit is also listed with an aluminum-and-iron single-cylinder engine rated at 1.65 horsepower and up to 5,500 rpm.

This two-stroke, single-cylinder engine is listed at 80cc, 1.65 horsepower, and up to 5,500 rpm, providing several concrete performance specifications for comparison. Its aluminum-and-iron construction is described as rust-preventive and resistant to bending. The listing also calls out multiple heat-dissipation holes, a feature relevant to the engine’s heat management during operation. Buyers should note that the included-components entry names one two-stroke bicycle engine, rather than detailing a full set of assembly accessories.

Skip it if you want an explicitly listed complete engine kit; IMAYCC’s 80cc product is described as a complete engine kit.

This suits buyers prioritizing an 80cc engine with listed heat-dissipation holes and clear output figures. Check the included-components description against your assembly needs, since it specifies the engine rather than a detailed accessory set.

Listed on Amazon as: 80CC Bicycle Engine Kit 1.65 HP 2 Stroke Gas Motor Engine Kit 1.8kw Bicycle Motor Kit with Single Cylinder System 5500RPM Gas Powered Bike Engine Kit for Most 26-28" Wheeled Bikes (Black)

#9

9. KONKENIE 80cc Engine

• Weight: 5.5 kg

Best for: Material-focused 80cc buyers.

Why it ranks #9: The 80cc engine lists 1.65 horsepower and 5500 rpm, but the supplied details identify an engine rather than a complete conversion kit.

Aluminum-and-iron construction is a central detail of this KONKENIE 80cc engine, which the listing describes as rust-proof and resistant to bending. Its two-stroke single-cylinder setup is rated at 1.65 horsepower and up to 5,500 rpm for buyers comparing engine specifications.

The 80cc engine combines aluminum and iron, materials the listing associates with rust resistance and resistance to bending. Its single-cylinder, two-stroke design is rated at 1.65 horsepower and 1.85 kW, with a maximum speed of 5,500 rpm. The stated fuel-use figure—0.53 gallons per 62 miles—gives buyers another point for comparing operation. The supplied product details identify an engine, so review your setup needs against what is listed before planning a conversion.

Skip it if you need a complete kit with assembly accessories and an English manual; CUBELLIN’s 100cc kit lists both.

This is for buyers comparing a standalone 80cc engine by construction, output, and stated fuel use. Its supplied details identify the engine rather than a complete conversion set, so account for that distinction when planning assembly.

Listed on Amazon as: 80CC 2-Stroke Petrol Gas Motor Engine Single Cylinder Air-Cooled Bike Engine Motorized Bicycle Engine 1.85KW 1.65HP 5500RPM (Silver)

#10 · Four-Stroke Option

10. Tiozuiu 100cc 4-Stroke Kit

• Weight: 42.3 lb
• Warranty Description: 1 Year
• Size: Chain Model

Best for: Four-stroke conversion shoppers.

Why it ranks #10: Distinct from the two-strokes, this 100cc four-stroke kit lists 3.5 horsepower, 3600 rpm, hand start, and a 44-tooth sprocket.

A four-stroke engine sets the Tiozuiu 100cc kit apart from the two-stroke options in this roundup. Its listed hand start, air cooling, 3.5-horsepower output, and 3,600 rpm specification give buyers concrete details for assessing the conversion’s starting method and engine profile.

The 100cc, four-stroke engine is listed with hand starting and air cooling, two practical details for buyers comparing startup and engine layouts. Its stated output is 3.5 horsepower at 3,600 rpm, while the included 44-tooth sprocket specifies a drivetrain component. The package also lists all assembly accessories and an English manual, which gives buyers documentation and parts for the assembly process. At 42.3 pounds, the kit’s stated weight is worth considering when planning handling and installation.

Skip it if you want a two-stroke 110cc engine; H-YEEU’s 110cc kit specifies a two-stroke design.

This suits riders specifically seeking a 100cc four-stroke bicycle conversion with hand start and air cooling. Consider the stated 42.3-pound kit weight when planning handling and installation, and note the listed 44-tooth sprocket.

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