Bike Motor Kit 4 Strokes of 2025
Best Choice1
EurHomePlusEurHomePlus 100CC Motorized Bicycle Kit, 4-Stroke 3HP Single Cylinder Bike Engine Kit, 3600rpm High Performance Gas Petrol Motorized Bike Engine Scooter, Recoil Start Engine
Main highlights- 【Strong Power】: The 100cc 4 stroke Bicycle Engine Kit boasts a robust 3.5HP horsepower, a displacement of 100cc, a rated power of 2kw/h, and a max rotating speed of 3600RPM, which provides you with strong power and accelerates your bike to a max speed of 50km/h.
- 【Quiet Operation】: This bicycle engine kit only has slight noise (about 75dB) and vibration when used. You can use it in most outdoor environments without worrying about noise disturbance.
- 【Low Fuel Consumption】: The overhead valve is used, which effectively helps reduce carbon buildup and dramatically improves fuel savings. The air filter also improves air filtration performance and reduces wear, achieving a fuel consumption of around 0.66 gallons/100km and saving much money on fuel costs.
- 【Durable & Sturdy】: The aluminum engine shell, iron fuel tank with baking paint, a 415# steel chain with shot blasting process, and a nylon cover on the side of the engine offer wear-resistance, achieving a max bearing capacity of 440 pounds and ensuring superior performance and a longer lifespan.
- 【Bike Modified Engine Large Fuel Tank】: This Gas Motorized Motor measures 11.81*5.51*5.9 inches with a large capacity of 0.52 gallons, allowing it to work for a long time. You don't need to fill the tank frequently, which is convenient.
9.8Exceptional
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Value for Money2
YSHUSTGY100Cc Bicycle Engine Kit,4-Stroke Bicycle Gasoline Engine Motor Motorized Bicycle Kit with Double Belt Drive & Air-Cooling, Bike Engine Kit for Mountain Bikes, Road Bikes, Gravel Bikes, Beach Bikes
Main highlights- Strong Power: The engine boasts a robust 3.5HP horsepower, a displacement of 100cc, a max power of 2kw/h, and a max rotating speed of 3600RPM, which provides you with strong power and accelerates your bike to a max speed of 50km/h.
- Quiet Operation: This bicycle engine kit only has slight noise (about 75dB) and vibration when used. You can use it in most outdoor environments without worrying about noise disturbance.
- Low Fuel Consumption: The 4-Stroke Bicycle Gasoline Engine Motor overhead valve is used, which effectively helps reduce carbon buildup and dramatically improves fuel savings. The air filter also improves air filtration performance and reduces wear, achieving a fuel consumption of around 0.66 gallons/100km and saving much money on fuel costs.
- Large Fuel Tank: 100cc Bicycle Engine Kit measures 11.41*5.9*6.29 inches with a large capacity of 0.52 gallons, allowing it to work for a long time. You don't need to fill the tank frequently, which is very convenient.
- Durable & Sturdy: The aluminum engine shell, iron fuel tank with baking paint, a 415# steel chain with rust prevention shot blasting process, and a rubber and nylon belt offer corrosion-resistance and wear-resistance, achieving a max bearing capacity of 440 pounds and ensuring superior performance and a longer lifespan.
9.7Exceptional
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3
YUNLAIGOTOPYUNLAIGOTOP 100cc Bicycle Motor Kit, 4-Stroke Bicycle Gasoline Engine Motor, Motorized Bicycle Kit with Double Belt Drive & Air-Cooling, Bike Engine Kit for Bikes (with Belt)
Why we love it
High performance aluminum alloy.
Quiet 4 stroke engine.
3HP max output.
9.6Exceptional
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4
CUBELLINCUBELLIN 100cc Bike Motor Kit 4-Stroke Bicycle Engine Kit Hand Start Motorized Bike Kit with Chain Drive OHV Air-Cooling Gas Bicycle Motor Gas Conversion Kit
Main highlights- LOW FUEL CONSUMPTION: The bike engine kit measures 11.81x5.51x5.9 inches with a large capacity of 0.52 gallons, allowing it to work for a long time. The overhead valve is used, which dramatically improves fuel savings. The air filter also improves air filtration performance and reduces wear, achieving a fuel consumption of around 0.66 gallons/100km.
- HIGH PERFORMANCE: The ergonomic T-shaped start handle provides a point of application of force for easy and comfortable starting. This bicycle engine kit only has slight noise (about 75dB) and vibration when used. You can use it in most outdoor environments without worrying about noise disturbance.
- DURABLE & STURDY: The aluminum engine shell, iron fuel tank with baking paint, a 415# steel chain with rust prevention shot blasting process, and a nylon cover on the side of the engine offer wear-resistance, achieving a max bearing capacity of 440 pounds and ensuring superior performance.
- COMPLETE KIT: This gas conversion kit is suitable for mountain bikes, road bikes, gravel bikes, beach bikes, etc. with large triangular empty frames. Our package includes all the parts to convert your bicycle into an electric one.
- AIR-COOLING SYSTEM: By adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting riding.
- 100CC BICYCLE ENGINE KIT: The 4 stroke engine boasts a robust 3.5HP horsepower, a displacement of 100cc, a rated power of 2kw/h, and a max rotating speed of 3600RPM, which provides you with strong power and accelerates your bike to a max speed of 50km/h.
9.5Excellent
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5
CUBELLINCUBELLIN 100CC 4-Stroke Bicycle Engine Kit 3HP Gas Powered Engine Motor Kit Single Cylinder Air Cooling Bicycle Conversion Kit 2KW Recoil Start Bicycle Engine Kit (Chain Style)
Main highlights- PREMIUM MATERIAL: The high-quality aluminum, iron, and plastic material give this 100cc bicycle engine kit good hardness and durability, allowing for long-term use.
- EASY TO USE: The 56mm bore cylinder increases the bearing capacity, and reduces the working temperature, making this bicycle engine motor kit easier to start, while providing continuous output over a range of speeds.
- 4-STROKE ENGINE KIT: The 4-stroke engine is more stable, more reliable, and quieter than the 2-stroke engine.
- 100CC BICYCLE ENGINE KIT: This gas powered bike kit converts your bike into a motorized bicycle, with max. speed of 3600rpm for great efficiency and convenience, allowing you to fully enjoy the fun of riding on your commute and short journeys.
- 0.4L/0.1GAL LARGE CAPACITY: The capacity of the bike conversion kit is 0.4L/0.1gal, which can support you to work for a long time. Therefore, you do not need to refuel frequently, which is conducive to improving your work efficiency.
9.3Excellent
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6
SimpMyloobe100cc Bicyncle Motor Kits, 4-Stroke Bicycle Gasoline Engine Motor, Motorized Bicycle Kit with Double Belt Drive & Air-Cooling, Bike Engine Kit for Bikes (Bike Chain)
Main highlights- 【Quiet Operation】Enjoy a smooth and quiet ride with this Motorized Bike Engine! Operating at just 75dB, it produces minimal noise and vibration. The advanced air cooling system prevents overheating, ensuring consistent performance and a comfortable riding experience, even on long journeys.
- 【Fuel-Efficient】Save money on fuel with this 100cc Engine Kit! Its overhead valve design reduces carbon buildup and improves fuel efficiency, achieving a consumption rate of just 0.66 gallons/100km. The large 0.52-gallon fuel tank also minimizes frequent refills, making it a practical and economical choice for daily rides.
- 【Easy Installation】This Bicycle Engine Kit 100cc includes all the necessary parts to convert your bike into a motorized powerhouse. Whether you're a DIY enthusiast or a beginner, the comprehensive kit makes installation straightforward. Experience the thrill of motorized biking at an affordable price with this all-in-one solution.
- 【Durable】Built to last, this Bicycle Motor Kit features an aluminum engine shell, an iron fuel tank with baking paint, and a rust-resistant 415# steel chain. With a max load capacity of 440 pounds, it ensures superior durability and a longer lifespan, making it ideal for heavy-duty use on various terrains.
- 【100cc Engine】Transform your bicycle into a high-speed machine with this 100cc Bicycle Engine Kit! Featuring a robust 3.5HP engine, a displacement of 100cc, and a max speed of 50km/h, this 4 Stroke Bicycle Engine Kit delivers strong power and performance. Perfect for thrill-seekers and commuters alike, it offers an exhilarating ride without the need for a full-sized motorcycle.
9.2Excellent
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7
mouhtfaoBicycle Engine Kit, 1500W 53CC 4-Stroke Powerful Bicycle Motor Kit, 6800RPM High Speed Single Cylinder Gasoline Engine Motor Kit with Safe TCI Ignition and Forced Air-Cooling System for Adult Bikes
Main highlights- SOLID AND STABLE: This bike engine kit is connected with high quality screws, which fixes it very well. The base is sturdy and can keep stable when working. It uses a four-stroke engine, which is more stable, reliable and quieter than its two-stroke counterparts. This engine is designed with vibration damping to bring you a better user experience
- SAFE AND EFFICIENT: This bike engine kit has a maximum power of 1.5 kW and a safe TCI ignition system for safe use. In addition, it can work up to 6800rpm, which brings you a wonderful riding experience
- LARGE CAPACITY: The bike engine kit fuel tank can hold 2L/67.6pz gasoline, which can be used for a longer time with one refueling
- GOOD HEAT DISSIPATION: The bike engine kit adopts forced air cooling system, which dissipates heat well when working and prolongs the service life
- COMPLETE ENGINE KIT: This bike engine kit comes with all the hardware you need to upgrade most traditional bikes to e-bikes, including the engine, wrenches, bolts, chain and more. You don't need to buy additional parts, thus saving a lot of money
9.1Excellent
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8
LIYUANJUNLIYUANJUN 4 Stroke Bicycle Engine Kit, 100CC Bicycle Motor Kit Gasoline Engine Set for Beach Bikes with Large Triangular Frame Space Recoil Starting Forced Air Cooling Single-Cylinder
Main highlights- 【Main Parameters】Fuel Tank Capacity: 1.6L/0.42gal; Fuel Consumption: <420 g/KW.h; Oil Capacity: 0.4L/0.1gal; Oil Consumption: <6.8 g/KW.h; Min. Stable Speed Unloaded: 3600rpm; Reduction Ratio: 1:1; Bore x Stroke: 2.2x1.5inch; Compression Ratio: 7:1
- 【High Quality Materials】This bike motor kit is made of high quality aluminum, iron and plastic materials giving it good hardness, not easy to wear, and durability for long-term use. Fits beach bikes with large triangular frame space. Easy installation and good cooling performance.
- 【High Performance】The bicycle motor kit's four-stroke engines are more stable, more reliable and quieter than two-stroke engines. In addition, the 56mm bore cylinder increases load carrying capacity and reduces operating temperature, making it easier to start while providing continuous output within a certain speed range.
- 【Enjoy Riding】This 4 stroke bicycle engine kit converts your bike into an electric bike for maximum mileage. The speed of 3600rpm is efficient and convenient, allowing you to fully enjoy riding pleasure during commuting and short-distance travel. Large capacity fuel tank, low fuel consumption and smooth riding.
- 【Complete Kit】1* engine, 1* fuel tank, 1* base bracket, 1* exhaust pipe, 1* 44 tooth chain, 1* chain tensioner, 1* chain, 1* chain guard, 2* fixed iron pieces, 1* spark plug tool, 1* fuel line, 1*fuel tank cap, 1* exhaust cushion, 1* fuel filter, 1*fuel valve, 1* chain tension adjusting tool, 1* english manual, other mounting accessories.
9.0Excellent
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9
BJTDLLXBJTDLLX 100cc Bicycle Engine Kit, 4-Stroke 3.5HP Gas Powered Bicycle Motor Kit, Single Cylinder Air-Cooling Motorized Bike Motor Kit with 2L Fuel Tank (Chain Type)
Main highlights- 【RUGGED AND DURABLE】The 4-stroke bicycle engine kit features an aluminum alloy engine case, baked iron fuel tank, rust-proof shot peened 415# steel chain, nylon cover on the side of the engine, corrosion and wear resistant, with a maximum load capacity of 440 lbs, superior performance and longer service life.
- 【POWERFUL POWER】The 100cc bicycle engine kit has a powerful 3.5HP horsepower with 100cc displacement, rated at 2kw/h and 3600RPM, providing you with a strong power to accelerate your bike up to 50km/h top speed.
- 【LARGE FUEL TANK】The 4-stroke bicycle engine kit measures 11.81*5.51*5.9 inches and has a large capacity of 0.52 gallons. The bike engine kit is only slightly noisy (about 75 dB) and vibrates when in use. You can use it in most outdoor environments without worrying about noise interference.
- 【FUEL SAVINGS】The bike engine kit utilizes overhead valves, which effectively help reduce carbon buildup and dramatically increase fuel savings. The air filter also improves air filtration performance and reduces wear and tear, and the fuel consumption is about 0.66 gallons per 100 kilometers, which greatly saves fuel costs.
- 【APPLICATION】The 100cc bicycle engine kit is suitable for mountain bikes, road bikes, gravel bikes, beach bikes and other big triangle empty frames. The bike engine kit includes all the parts to convert your bike into an electric bike, just one purchase to meet your needs!
8.9Very Good
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10
Ojseimchrl100cc 4-Stroke Bicycle Kit, Gasoline Engine Motorized Bicycle, Air-Cooled Motorized Bike Motor Complete Assembly Gas Motorized Motor Kit for Motorized Bicycle 26-28inch Bike (with Belt)
Main highlights- 【Upgrades Bike Motor Kit】This kit converts your bike into a motorized bicycle, Adoption aluminum, Iron, and Plastic, Engine type: Forced Air Cooling, 4-Stroke, OHV, Single-cylinder, Inclined by 25 Degrees, 3HP Max Output, Rated Power: 2KW/3600rpm.
- 【Install Suggest】 If you are inexperienced or installing an engine kit for the first time, please read our Video, or if you have any questions contact us in time. The Installation needs Professional hardware skills and tools, and about 2-4 hours of installation and fine-tuning.
- 【High Performance】 The 4-stroke engine is more stable, reliable, and quieter than the 2-stroke engine. Also, the 56mm bore cylinder increases the bearing capacity, and reduces the working temperature, making it easier to start, while providing continuous output over various speeds.
- 【Enjoy Riding】This kit converts your bike into a motorized bicycle, with max. speed of 3600rpm for great efficiency and convenience, allowing you to fully enjoy the fun of riding on your commute and short journeys.
- 【100cc Bicycle Engine Kit】Come with 100cc 4-Stroke Gasoline Engine, Fuel Tank, Base Bracket, Exhaust Pipe, 44 Tooth Chain, Chain Tensioner, Chain Guard, 2* Fixed Iron Pieces, Spark Plug Tool, Fuel Line, Fuel Tank Cap, Exhaust Cushion, Fuel Filter, Fuel Valve, Chain Tension Adjusting Tool, English Manual.
8.7Very Good
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