Top 10 4stroke Bike Kit – Adult Electric Bicycles

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1. Anbull

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Anbull 49CC 4 Stroke Gas Petrol Motorized Bike Bicycle Engine Motor Kit for 28” V Frame Bike and 26” ATV

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Anbull #ad - 49cc 4 stroke pull start petrol conversion kit fits for normal 28” v frame bike and 26” ATV bike, both with 28-40mm frame tube. This 4 stroke bicycle engine kit is more stable, more reliable and Quieter than the 2 stroke rivals.

Note: installation instruction not included. It is recommended to find a professional to install or refer to videos online by searching "49CC bike motor installation". Pls note: the switch has two cables green and black and the engine has one cabel black, air-cooling, you can just connect the black to black and don' t need to connect the green cable. You can wrap it with a electrical tape. 4-stroke 49cc bike engine kit is perfect to upgrade the regular bike to a motorized bike, you can enhance the riding experience by accelerating the speed.

With powerful motor and 44 tooth 9 hole sprocket, 49 cm3 displacement, this motor is with speed 27-32 MPH / or 43-51 KPH. With 41. 8 x 36 mm bore stroke, oil tank capacity 2. 5. Mode of engine: single cylinder, 4-stroke; compression ratio:8. 0 : 1; ignition system: Transistorized magneto ignition.
BrandAnbull #ad
ManufacturerANKUL #ad
Part NumberSP0096

2. DYRABREST

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Motorized Bicycle Kit 49CC 4-Stroke Gas Petrol Bike Engine Air-Cooled System Single Cylinder Chain Drive Scooter Engine Conversion Kit for Normal 28” V Frame Bike and 26” ATV Bike Chain Type

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DYRABREST #ad - More stable & high speedwith powerful motor and 44 tooth 9 hole sprocket, this motor is with speed 27-32 MPH / or 43-51 KPH, high speed and work more effect. Satisfaction guarantee & after saleswe firmly believe in our product quality, If you are not satisfied with our products, please feel free to contact us, our service purpose is to satisfy customers.

This 4-stroke motor is more stable, more reliable and quieter than the 2 stroke rivals. 4 stroke engine motorthis engine is a 4-stroke motor engine kits, includes everything a motor needs at a economic price. Quiet and slight vibrationwith 41. 8 x 36 mm bore stroke, when you use it after installation, it only has a slight noise and slight vibration, 49 cm3 displacement, oil tank capacity 2.5l, which will not disturb. Applicationfits normal 28” v frame bike and 26” ATV bike, both with 28-40mm frame tube.
BrandDYRABREST #ad
ManufacturerPumpkiUS #ad
Height11 Inches
Length20.5 Inches
Weight32 Pounds
Width11 Inches

3. DYRABREST

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DYRABREST 49CC 4-Stroke Motorized Bicycle Kit Gas Petrol Bike Engine Air-Cooled System Single Cylinder Chain Drive Bicycle Scooter Conversion kit Chain Style

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DYRABREST #ad - This engine is a 4-stroke motor engine kits, includes everything a motor needs at a economic price. Fits normal 28’’ v frame bike and 26’’ ATV bike, both with 28-40mm frame tube. With 41. 8 x 36 mm bore stroke, 49 cm3 displacement, oil tank capacity 2. 5l. With powerful motor and 44 tooth 9 hole sprocket, this motor is with speed 27-32 MPH / or 43-51 KPH. This 4-stroke motor is more stable, more reliable and quieter than the 2 stroke rivals.
BrandDYRABREST #ad
ManufacturerDyrabrest #ad
Part Number0011100111100

4. Kuhxz

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4-Stroke New Bicycle Motorized Engine Motor Kit, Low Failure Rate, for Most Bikes Mountain Bikes, Bike Motor Kit, Road Bikes, Bike Refit 53cc Gasoline Engine, Kuhxz 4-Stroke Bicycle Engine Kit

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Kuhxz #ad - This product requires a more professional installation, you need to read the installation instructions carefully or view the video tutorial on the Internet to complete this task. After the transformation is completed, and can reach 38km/h.

It does not need to spend too much effort to increase the speed, its speed is almost as fast as motorcycles or electric vehicles, making your outdoor travel more convenient. Super fuel-efficient. If you encounter any problems before or after your purchase, you can contact us and our professional customer service team will reply as soon as possible within 24 hours.

Your satisfaction is our goal. This engine kit fits most 26" or 28" bikes with V-frame, road bikes, such as mountain bikes, cruisers, choppers. On average, only 2. 5l of fuel is required per 100 kilometers. When you fill up the fuel tank, it means that the bike is ready to go with you! 80KM is not a short journey. Just a regular mens bicycle with traditional "diamond" shape frame will work.
BrandKuhxz #ad
ManufacturerKuhxz #ad

5. TBVECHI

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TBVECHI 4-Stroke Bicycle Motor Kit 49cc Gas Motorized Bicycle Bike Engine Motor Kit with Double Chain Drive

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TBVECHI #ad - Application fits normal 28” v frame bike and 26” ATV bike, both with 28-40mm frame tube. Specification 1with powerful motor and 44 tooth 9 hole sprocket, this motor is with speed 27-32 MPH / or 43-51 KPH. Powerful 4-stroke motorthis 4-stroke motor is more stable, more reliable and quieter than the 2 stroke rivals. Meet your needsthis engine is a 4-stroke motor engine kits, includes everything a motor needs. Specification 2with 41. 8 x 36 mm bore stroke, 49 cm3 displacement, oil tank capacity 2. 5l.
BrandTBVECHI #ad
ManufacturerChoicestEquip #ad
Part Number142F

6. Kimanli

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Bicycle Motor Kit Set for 24" 26" 28" Bikes, Bike Conversion Kit, DIY Petrol Gas Engine, 53CC Bicycle Engine Kit, 4-Stroke Bicycle Motor Engine, Max.Speed 45km/h

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Kimanli #ad - Mode of engine: single cylinder, air-cooling, 4-stroke natural air cooling; The rider needs some basic hardware tools, skills and around 2-3 hours to install.4-stroke: 53cc bicycle engine kit is perfect to upgrade the regular bike to a motorized bike, you can enjoying riding at a faster speed, which can reach 45km/h as fast as a motorcycle or scooter.

53cc motorized bike kit: fits for most 26" or 28' wheeled bikes with v-frame. Run-in period: be assured the mixing ratio for fuel and oil, 16:1 for break period first 300-500 miles / 20:1, after 18:1 is much better in summer because of the hot weather; Air cylinder might take some time to adjust to the load. Pay attention to daily maintenance and maintenance, which will help extend the life of the engine.

Installation: this engine is equipped with a detailed installation manual. The frame should have 9-11" of clearance between the bottom bracket and top bar, and the diameter of the frame tubes should be less than 1. 25in/32mm. Thus to avoid possible complications for the motor, please limit the riding time to a maximum of 1 hour for the first few rides. Add some lubricant into the air cylinder before starting. It may take some time to debug the engine to reach the optimal working condition.
BrandKimanli #ad
ManufacturerKimanli #ad
Height10.63 Inches
Length18.5 Inches
Weight34.17 Pounds
Width14.57 Inches
Part NumberKimanliUSI01GJS2006222210603

7. DYRABREST

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DYRABREST 4-Stroke 49cc Bicycle Engine Kit Air-Cooled Gas Petrol Bicycle Engine Motor Set Gas Motorized Bike Motor Kit for Bicycle Mountain and Road Bike Gas Motorized Motor Bike Without Belt

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DYRABREST #ad - Applicationfits normal 28” v frame bike and 26” ATV bike, both with 28-40mm frame tube. Parameterswith 41. 8 x 36 mm bore stroke, 49 cm3 displacement, oil tank capacity 2. 5l. Powerfulwith powerful motor and 44 tooth 9 hole sprocket, this motor is with speed 27-32 MPH / or 43-51 KPH. Stable operationthis 4-stroke motor is more stable, more reliable and quieter than the 2 stroke rivals. Four-stroke enginethis engine is a 4-stroke motor engine kits, includes everything a motor needs at a economic price.
BrandDYRABREST #ad
ManufacturerYILI2EnJI #ad
Part NumberAC-FYL-1110-123

8. Gdrasuya

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49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US

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Gdrasuya #ad - The top speed of between 27 - 32 MPH / or 43 - 51 KPH. 4 stroke engines are more stable, more reliable and Quieter than the 2 stroke rivals. 49cc 4 stroke pull start petrol conversion kit for adult bicycles, ideal for bikes with 26 inch frames and similar. The top speed of between 27 - 32 MPH / or 43 - 51 KPH. Long term spares available as required.
BrandGdrasuya #ad
ManufacturerGdrasuya #ad
Part Number1

9. TFCFL

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Air-Cooled System Engine Motor OHV Single Cylinder Motorized Bicycle Engine Complete Kit fits Normal 28” V-Frame Bike and 26” ATV Bike, TFCFL 49CC 4-Stroke Gas Motorized Bike Motor Kit

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TFCFL #ad - The bicycle motor fits most 24" and larger bicycles with a V-frame with at least a 8. 5" height clearance for the engine. Applicationfits normal 28” v frame bike and 26” ATV bike, both with 28-40mm frame tube.

If you have any problems with the purchasing, please feel free to contact us. We upthehill are always at your service. Advantagesthis 4-stroke motor is more stable, more reliable and quieter than the 2 stroke rivals. With 41. 8 x 36 mm bore stroke, 49 cm3 displacement, oil tank capacity 2. 5l. Specificationwith powerful motor and 44 tooth 9 hole sprocket, this motor is with speed 27-32 MPH / or 43-51 KPH. Newest style gear boxthis comes with the newest style gear box which runs on 2 chains for more torque. 100% satisfaction guaranteedusa stock, delivery time need about 5-8 days.
BrandTFCFL #ad
ManufacturerUpthehill #ad
Part NumberAC-FYL-1110-JHIN

10. Sheralin9

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Sheralin9 New Bicycle Motorized Engine, DIY Petrol Bicycle Motor Kit, Bike Engine Kit, Motor Kit 4-Stroke 53cc Gas Petrol Engine Full Set, for 26",28" Bikes

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Sheralin9 #ad - One year warranty covers the motor, please contact us, to Provide Parts Free. This engine kit fits most 26" or 28" bikes with V-frame, cruisers, such as mountain bikes, road bikes, choppers. This product requires a more professional installation, you need to read the installation instructions carefully or view the video tutorial on the Internet to complete this task.

Super fuel-efficient. It does not need to spend too much effort to increase the speed, its speed is almost as fast as motorcycles or electric vehicles, making your outdoor travel more convenient. After the transformation is completed, and can reach 38km/h.

Just a regular mens bicycle with traditional "diamond" shape frame will work. On average, only 2. 5l of fuel is required per 100 kilometers. When you fill up the fuel tank, it means that the bike is ready to go with you! 80KM is not a short journey. If you have any questions, we will provide you with a solution within 24 hours ! ! .
BrandSheralin9 #ad
ManufacturerSheralin9 #ad