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

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1. ZXTDR

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ZXTDR 49cc 2 stroke Engine Motor for Mini Pocket Bike Scooter Dirt Bikes ATV Quad Motorized Bicycle

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ZXTDR #ad - Suitable for: 47cc/49cc pocket bike, mini dirt bike, ATVs and so on. Complete assembled 49CC 2 Stroke Engine. Gas mix oil rate is 25:1. The sprocket on this engine fits T8F chains.
BrandZXTDR #ad
ManufacturerZXTDR #ad
Weight0 pounds
Part NumberU-TS001

2. OUKANING

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49CC 4-Stroke Motor Engine Kit Motorized Bicycle Kit Bike Engine Kit Single Cylinder Gas Petrol Motorized Bike Engine Scooter Belt Gear Fits Normal 28" V Frame Bike and 26" ATV Bike US Stock

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OUKANING #ad - The engine's fuel tank can hold 2 liters of gasoline, allowing you to use it for a longer period of time with a single fill-up. Main parameterignition system: transistorized magneto ignition; starting system: recoil starter; carburetor float type; lubrication system: forced splash; governor system: centrifugal mechanical; Air Cleaner Semi-dry Type; Oil Capacity: 025l 026 us qt, 022 imp qt; fuel Tank Capacity liter: 077l 081 us qt; product size: 27*23cm/1062*9.

05in; package size: 52*28*28cm/2047*11. 02*11. 02in; gross Weight: 14. 5kg/31. 96lbs. This engine is air-cooled to keep the heat dissipated while operation, extending the life of the engine. The top speed of between 27-32 MPH / or 43-51 KPH. Packages1 x quality 49cc 4 stroke engine;1 x gas tank, plastic gasoline fuel line, 9 sprocket bolts, 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 Adjustable throttle cable.
BrandOUKANING #ad
ManufacturerDingYiHanHan #ad
Part NumberAC-FL-1341-ZS-DY-DINGYIHANHAN
ModelAC-F-1341-ZS-DY-QQ
WarrantyIf your bike has a one-piece crank, you will need a European bottom bracket adapter to mount a wide crank.

3. FEWENi

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Silver, Ambienceo 26” 28” Black 2 Stroke 50cc 80cc Cycle Bicycle Gas Motorized Gasoline Engine Motor Kit CDI Air Cooling For Mountain and Road Bike 80cc

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FEWENi #ad - Mode of engine: single cylinder, 2-stroke Natural air cooling; The rider needs some basic hardware tools, air-cooling, skills and around 2-3 hours to install.2-stroke 50cc or 80cc engine kit is perfect to upgrade the regular bike to a motorized bike, you can enjoying riding at a faster speed, which can reach 30km/h as fast as a motorcycle or scooter.

Fits most 26" or 28' wheeled bikes with standard v-frame. Key parameters: rated power:1. 15kw~2. 5kw/5000r/min; Max Power:1. 6kw~3. 5kw/6000r/min. 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". Lubrication oil: oil for 2-stroke petrol engine or oil for 10w/4010w/30; mixing ratio of fuel and engine Oil: 16:1 for new sets, 32: 1 after running 500km. Add some lubricant into the air cylinder before starting.
BrandFEWENi #ad
ManufacturerAmbienceo JKL #ad
Part NumberAmbienceo 367
ModelMP-QYJ
Warranty1 year manufacturer

4. TFCFL

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TFCFL 125cc Engine 4 Stroke Motor Single cylinder with Air-Cooled Motor Engine Pit Dirt Bike For Honda CRF50 CRF70 XR50 XR70 Dirt Pit Bike Motorcycle Spark Plug A7TC 125cc Engine 4 Stroke

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TFCFL #ad - Type:#92 gasoline; single cylinder, 4-stroke with air-cooled, and clutch operated by hand. Excellent quality, 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, models, great bike engine motor accessories.

Power: max power: 6. 5 kw/7500r/min±375r/min, min fuel consumption: ≤370g/kw. H, max torque: 8. 0 nm/5000r/min±250r/min;idle speed: 1500r/min, Ignition System: CDI. Fits: honda crf50 / z50 / st 90k1 / cl70 / qa50 / sl 90 / xr50 / 70 passport / cs 90 / z50 / sl70 / xr70 / minitrail monkey / st 90k2 / crf70 / z50r / ct70 mini Trail / XL70 ST70 / qr50 / ZB 50.

Gear ratio: gear ratio:2. 833/1. 706/1. 238/0958, primary reduction;ratio: 3. 722, transmission:4-speed, carburetor type:pz16J, Manual clutch, Compression Ratio: 9.0:1, 1-n-2-3-4; start mode: Kick-starter. High performance: a high performance engine, skateboards and so on.
BrandTFCFL #ad
ManufacturerKAHE #ad
Part NumberAC-YCZYQ-1495
ModelAC-YCZYQ-3935-kahe
Warrantyyes

5. Flying Horse

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66/80cc Bullet Train Electric Start Engine Gasket #7

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Flying Horse #ad - This gasket goes between the Cylinder Body and the crank case. This 66/80cc bullet train electric pull start gasket #7 is designed for use with Electric Start 2-stroke bicycle engine kits, like the 66/80cc Flying Horse Bullet Train Bicycle Engine Kit. This part is not compatible with standard 66/80cc 2-stroke engine kits, such as the Mega Motors engine, non-electric start Flying Horse engines, Grubee engines, RAW Motors engines, and Power King PK80 engines. Not compatible with 4-stroke engines, centrifugal clutch 2-strokes, or 2-strokes with internal CDI's.
BrandFlying Horse #ad
ManufacturerFlying Horse #ad
Weight0.35 pounds
Part NumberBT-GSKET7

6. Flying Horse

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66/80cc Bullet Train Electric Start Engine Cylinder Body

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Flying Horse #ad - This part is not compatible with standard 66/80cc 2-stroke engine kits, RAW Motors engines, non-electric start Flying Horse engines, such as the Mega Motors engine, Grubee engines, and Power King PK80 engines. This 66/80cc cylinder body is designed for use with Electric Pull Start 2-stroke bicycle engine kits, like the 66/80cc Flying Horse Bullet Train Bicycle Engine Kit. Not compatible with 4-stroke engines, centrifugal clutch 2-strokes, or 2-strokes with internal CDI's.
BrandFlying Horse #ad
ManufacturerFlying Horse #ad
Weight2 pounds
Part NumberBT-66CYLBODY

7. Sange

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Sange 2 Stroke Pedal Cycle Petrol Gas Motor Conversion Kit Air Cooling Motorized Engine Kit for Motorized Bike 50cc Black

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Sange #ad - Comes with all needed hardware and detailed manual for easy installation, the instruction contains every detail of the assembly steps.

Its heat treated motor and power coated gas tank are anti-rust for a long lifespan. Perfectly fit for most type 26" and 28" bikes with V-frame, cruisers, such as mountain bikes, road bikes, choppers. With the electronic igniter, you can use it safely. Super fuel-efficient, only consuming 1. 5 litre fuel per 100km, you can enjoying riding at a faster speed, which can reach 30km/h as fast as a motorcycle or scooter. The ignition mode of the bike gasoline engine is capacitor discharge.
BrandSange #ad
ManufacturerSange #ad
Part NumberMP-QYJ

8. ZXTDR

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ZXTDR Lifan 125cc Engine Motor for XR50 CRF50 XR CRF 50 70 ATC70 110 ATC70 Z50 CT70 CL70 SL70 XL ST70 Dirt Pit Bike Kawasaki Motorcycle

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ZXTDR #ad - Replacement / upgrade for xr50 crF50, Kawasaki KX KLX and other most popular dirt bikes. This kit comes with 1p52FMI engine, kick starter, intake manifold, manifold kit. Easy to hook everything up: Just remove your existing engine and reverse the process to put the new one in. High performance lifan 125cc engine, manual clutch, N-1-2-3-4, 4 stroke 4 speed, with 15T 428 chain sprocket, Shaft size: 20mm. See below Product Description for more specifications.
BrandZXTDR #ad
ManufacturerZXTDR #ad
Weight44.09 pounds
Part NumberU-TD200

9. Flying Horse

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66/80cc Bullet Train Electric Start Engine Automatic Clutch

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Flying Horse #ad - Not compatible with 4-stroke engines, centrifugal clutch 2-strokes, or 2-strokes with internal CDI's. This 66/80cc automatic clutch is designed for use with Electric Pull Start 2-stroke bicycle engine kits, like the 66/80cc Flying Horse Bullet Train Bicycle Engine Kit. This part is not compatible with standard 66/80cc 2-stroke engine kits, RAW Motors engines, Grubee engines, non-electric start Flying Horse engines, such as the Mega Motors engine, and Power King PK80 engines.
BrandFlying Horse #ad
ManufacturerFlying Horse #ad
Weight2.55 pounds
Part NumberBT-CLUTCH

10. Generic

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New Phantom 85 ZTMoto Motorized Bicycle Engine Kit, 36 Tooth

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Generic #ad - This bike engine kit has all of the necessary items to turn your pedal bicycle into a motorized monster! Supply is very limited, so get yours while they last.

Ztmoto phantom 85. 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 phantom boasts a 52mm bore, fastest, single piece cylinder combined with a 40mm stroke that makes this the biggest, a reed valve, redesigned, a double window piston, most powerful bike engine you can buy. The first true 85cc 2 stroke engine built for motorized bicycling. The bike engine kit comes standard with an upgraded CDI, the latest performance Speed carb, and a brand new class of high-end exhaust.
BrandGeneric #ad
Weight27 pounds