Top 10 4 Stroke Bicycle Engine Kit – Automotive Replacement Engine Kits

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49CC 4-Stroke Gas Petrol Motorized Bike DIY Engine Motor Kit Scooter with Chain Drive Bicycle Scooter Conversion Kit US Stock without belt

VPABES #ad - Reliable quality:worry-free 36-month. If you have any question about the product, we support 24*7 hours prompt customer service. Pakage include:1 x quality 49cc 4 stroke engine;1 x gas tank, 9 sprocket bolts, plastic gasoline fuel line, fuel value;1 x adjustable chain idler;1 x 44 tooth 9 hole sprocket;1 x chain guard;1 x Extra wide crank/sprocket;1 x Fiber sprocket mounting rings, 3 metal retaining segments;1 x Engine Mounting plate with universal mounting brackets;1 x Spark Plug Wrench;1 x Misc.

Mounting bolts with nuts;1 x heavy duty #415 chain;1 x Twist grip throttle with built-in kill switch;1 x throttle cable.

4 stroke engines are more stable, more reliable and Quieter than the 2 stroke rivals. The top speed of between 27 - 32 MPH / or 43 - 51 KPH. The tank holds 2 litres of petrol and everything comes with the kit. 49cc 4 stroke pull start petrol conversion kit for adult bicycles, ideal for bikes with 26 inch frames and similar Long term spares available as required.
BrandVPABES #ad
ManufacturerVPABES #ad
Height11 Inches
Length20.5 Inches
Weight32.5 Pounds
Width11 Inches
Part NumberVP-0831-01

2. Futchoy


Futchoy 142F 4-Stroke 49CC Bike Engine Motor 49cc Dual Chain Drive Bicycle Motor Kit Petrol Gas Engine 4 Stroke Bicycle Engine Kit with Air Cooled with Two Chains

Futchoy #ad - Specificationsengine model: 142f, displacement: 49 cm3 2. 99 cu in, 000 rpm, net torque: 2. 7 nm 2. 0 lbs ft at 4, net horse power output: 1. 6kw 2. 1 hp at 7, compression ratio: 8. 0 : 1, bore x stroke: 41. 8 x 36 mm 1. 65 x 1. 42 in, 500 rpm.

One is inside and the other is outside. Tipsthe motor is equipped with two chains. Systempto shaft rotation: counterclockwise from pto shaft side, Ignition system: Transistorized magneto ignition, Starting system: Recoil starter, Carburetor float type, Lubrication system: Forced splash, Governor system: Centrifugal mechanical. Applicationsthis engine kit is suitable for most 26" or 28" bikes with V-frame, suitable for normal 28" V-frame bikes and 26" ATV bikes, all with 28-40mm frame tube.

Advantagesthis 49cc 4-stroke pull-start gasoline conversion kit is used to upgrade a normal bike to an electric bike, making your outdoor travel more convenient, up to 38km/h. It runs almost as fast as a motorcycle or scooter, after modifying the bike, reliable, and the four-stroke is more stable, you can enjoy faster riding speed, and quieter. If your bike has one piece cranks you will need a European Bottom Bracket Adapter for the wide cranks to be installed.
BrandFutchoy #ad
ManufacturerRoyan-LMJ #ad
Weight31.97 Pounds
Part NumberAC-FYL-1111-1-FJD

3. GDAE10


Motorized Bicycle Kit Bike Engine Kit Single Cylinder 49CC 4-Stroke 142F Air-cooled System w/Double Chain Drive Fits normal 28” V frame bike and 26” ATV bike US Stock

GDAE10 #ad - With 41. 8 x 36 mm bore stroke, 49 cm3 displacement, oil tank capacity 2. 5l. Fits normal 28” v frame bike and 26” ATV bike, both with 28-40mm frame tube. This engine is a 4-stroke motor engine kits, includes everything a motor needs at a economic price. This 4-stroke motor is more stable, more reliable and quieter than the 2 stroke rivals. With powerful motor and 44 tooth 9 hole sprocket, this motor is with speed 27-32 MPH / or 43-51 KPH.
BrandGDAE10 #ad
ManufacturerGDAE10 #ad
Height11.02 Inches
Length20.47 Inches
Weight31.97 Pounds
Width11.02 Inches
Part NumberGDAE10

4. Flying Horse


Flying Horse Complete 5G 4-Stroke Bicycle Engine Transmission Kit

Flying Horse #ad - This transmission can with stand hundreds of hours of use. Complete kit: the flying horse 5g 4-stroke transmission kit comes with everything needed to install your engine on to your bicycle, EXCEPT the engine. This kit is designed for those who've already purchased an engine and looking for all the required accessories to install it.

Dual chain transmission: high quality and durable dual chain transmissions lasts longer and is not prone to over heating like single chain or belt drive. Package includes: 1x 5g 4 stroke transmissions, 1x 44 tooth sprocket, 1x fuel valve, 1x throttle grips and kill switch combo, 1x Chain Guard, 1x Sprocket Clamp Assembly, 1x Fuel line, 1x 415 heavy duty chain, 1x Engine Mounting Plate, 1x 4 stroke muffler, 1x Wide Crank Arms Set, 1x 1.55

5l black gas tank, 1x throttle Cable, 1x Chain Idler Pulley. All you need is your own 4 stroke engine to complete your build. Easy installation: this kit makes installing your engine a breeze! It includes everything from the sprocket and chain to the throttle grips. Universal fit: this transmission kit fits a wide range of 4-stroke engines, including the Grubee 4-stroke engine and nearly all Huasheng 142F 4-stroke bicycle engine kits with 3" bell rotor transmissions.
BrandFlying Horse #ad
ManufacturerFlying Horse #ad
Weight17.8 Pounds

5. Sihand


49cc 4 Stroke Engine Motor Kit, Gas Petrol Motorized Bike Engine Bicycle for 26" or 28" ATV Bikes Silver, Bike Engine Kit 4 Stroke

Sihand #ad - 2. Long term spares available as required. 5. If you are not satisfied with this product or if you have any question, please feel free to contact us. We would like to issue full refund if finally we could not resolve your problem or you are not satisfied with the result.

1. Go to your amazon account and find the order. 3. 4 stroke engines are more stable, more reliable and Quieter than the 2 stroke rivals. 4. The top speed of between 27 - 32 mph / or 43 - 51 KPH, The tank holds 2 litres of petrol and everything comes with the kit. 49cc 4 stroke pull start petrol conversion kit for adult bicycles, ideal for normal 28” V frame bike and 26” ATV bike, both with 28-40mm frame tube. 2. Click the seller name and enter the store page. 3. Click "Ask a question". 1.
BrandSihand #ad
ManufacturerSihand #ad
Part NumberSihand



NAVARME 42cc 4-Stroke Rear-Wheel Side Mount Kit for 47cc 49cc GX35 Gas Motorized Bicycle Bike

NAVARME #ad - Simple installation, reliable, the kit is rugged enough to be used for everyday, economic transportation. The kit uses an engine that has an automatic centrifugal clutch. Package include:1 x Rear-Wheel Side Mount Kit. Get up to 200 mpg and reach speeds of 30+ MPH. Convert almost any bicycle into a motor bike in no time at all. Can be mounted on virtually any bicycle.
BrandNAVARME #ad
ManufacturerNAVARMETools&Parts #ad
Part NumberAMFLHMB1724



125cc Engine 4 Stroke Motor,Single Cylinder Motor Engine with Air-Cooled,Manual Clutch Dirt Pit Bike Engine Motor Kit for Honda XR50 CRF50 CRF70¡­

TFCFL #ad - Excellent quality, great bike engine motor accessories. Wide applications for honda crf50 / st 90k1 / sl 90 / ct70 mini trail / st 90k2 / sl70 / xl70 st70 / qr50 / z50 / xr50 / cl70 / Z50R / Z50 / minitrail monkey / xr70 / CRF70 / cs 90 / qa50 / 70 passport / ZB 50.

Main parametersbore×stroke: 52. 4×55. 5 mm, start mode: kick-starter, spark plug: a7tc, lubricant capacity: 900 ml, Transmission:4-speed, Ignition System: CDI, 4 up, Clutch: Wet multi-plate, Displacement: 119.77 ml, lubricant: sae15w/40-se, Manual clutch, 4-stroke gasoline engine oil.125cc engine 4 stroke motor a high performance engine, models, perfect for those comfortable with faster engines and have a desire to get up and go; Wide range of applications, can be applied for bicycles, skateboards and so on.

Gear ratiogear ratio:2. 833/1. 706/1. 238/0958, carburetor type:pz16j, primary reduction ratio:3. 722, manual clutch, transmission:4-speed, Compression Ratio: 9.0:1, 4 up; start Mode: Kick-starter.
BrandTFCFL #ad
ManufacturerDNYSYSJ #ad
Part NumberSAL-585



WPHMOTO Complete set of Lifan 125cc Engine Semi-Auto 4 Stroke Motor with Wiring Harness Carburetor Chain Sprocket Exhaust Muffler Pipe Kit for Trail Bike CT70 90 110 125 Dirt Bike Trike

WPHMOTO #ad - Please check the mounting hole spacing before buying. Comes with: engine, chain & sprocket, exhaust pipe kit, throttle kit, carburetor kit, wiring narness & electrical components. Has the standard mounting points, fit basically any monkey/dax/supercub/pitbike. Replacement / upgrade for trail Bike CT70 90 110 125 and other most popular bikes. Lifan 1p54fmi 125cc engine, automatic clutch with 15T 428 chain sprocket, gears: n-1-2-3-4, Shaft size: 20mm.
BrandWPHMOTO #ad
ManufacturerWPHMOTO #ad
Part NumberWPH-MixTD204

9. Amebee


Bike Engine Kit 4 Stroke 53cc Bicycle Motor Petrol Gas Engine Kit Fit with Most 26"-28' Wheel Bike by Amebee for Bicycle Mountain & Road Bike Gas Motorized Motor Bike 53cc 4 Stroke Belt Drive

Amebee #ad - Premium product selection 🥳 top value buy factory direct internatioal shipping premium material & fuel Saving Motor Bike Kit Strong Power Heavy duty metal engine body for added durability. Your motorcycle can have better endurance to support long distance riding. Super fuel-efficient, only consuming 2.

5 litre fuel per 100km. Fast and smooth, can speed up to 38km/h, enjoy riding at a faster speed. Bicycle engine kita complete engine kit for converting your bike, cruisers, this 53cc petrol gas engine kit is used to upgrade the regular bike to a motorized bike. After converting your bike, such as mountain bikes, road bikes, making your outdoor trip more convenient. Each one defective motor bike kit can have the free replace or refund, economical and practical. If the bicycle engine kit you received have quality problems, includes everything a bike motor needs, buy with confidence. 80cc bicycle engine kit bike engine kit 80cc bike motor kit gas engine motor kit motorcycle bicycle kit motorcycle kit.

And add some lubricant into the air cylinder before starting. The frame should have 9-11" of clearance between the bottom bracket and top bar, and the diameter of the frame tubes should be 25-29mm around an 1". 53cc bike motor kit 4 strokehigh performance engine, 2-stroke; fuel type:gasoline 93#;mixing Ratio of Fuel and engine Oil: 16:1 for new sets breaking time, air-cooling, mode of Engine:Single cylinder, 25:1 after running 300KM;Please use premium quality oils to prolong engine life.
BrandAmebee #ad
ManufacturerAmebee Sport #ad
Weight34.17 Pounds
Part Number4 Stroke Petrol Gas Engine 53cc Bike Kit
ModelPetrol Gas Engine 53cc 4 Stroke Bike Kit
Warranty* See All Buying Options Get Genuine Parts and Service from official Amebee Sport direct supplier Global Market Service. Third party Non direct supply service and warranty not supported. Be careful for third party individual seller who cheat Amazon page Buy Cart Button. Warning: ‎* Power auto machine. Handle and use with care on your own risk. If need get professional mechanic assistance from bike shop and auto repair.

10. Generic


36T Sprocket 36 Tooth, ZTMoto Phantom 85, True 85cc Bike Motor, Complete 52mm Bore 2 Stroke Motorized Bicycle Engine Kit

Generic #ad - More powerful than the so called 100’s, faster than the Dio’s, the Phantom delivers high end performance right out of the box. The phantom boasts a 52mm bore, redesigned, fastest, single piece cylinder combined with a 40mm stroke that makes this the biggest, most powerful bike engine you can buy.

Testing has shown the ztmoto 85 to deliver well over 3 hp. Introducing the ztmoto phantom 85. The first true 85cc 2 stroke engine built for motorized bicycling. More than 2 years in the making this exclusive new engine has been redesigned to be the most powerful and reliable bicycle engine available. The bike engine kit comes standard with an upgraded CDI, a reed valve, the latest performance Speed carb, a double window piston, and a brand new class of high-end exhaust.
BrandGeneric #ad
ManufacturerZeda #ad
Weight27 Pounds
Part NumberENGJL-ZTP*