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10 Best 4 stroke motors for bicycles of 2025

Save up to 11% off
  • Best Choice

    1

    CUBELLIN 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
    CUBELLIN

    CUBELLIN 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

    9.9
    Exceptional
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  • Value for Money

    2

    Bicycle 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
    mouhtfao

    Bicycle 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

    9.8
    Exceptional

  • 3

    YUNLAIGOTOP 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)
    YUNLAIGOTOP

    YUNLAIGOTOP 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)

    11% Off
    • motor:4-Stroke, 3HP, 100cc
    • frame material:Aluminum, Iron, Plastic
    • brake style:N/A
    • number of speeds:N/A
    • wheel size:N/A
    9.7
    Exceptional

  • 4

    YIYIONCE 4 Stroke Bicycle Engine Kit 53CC Gas Powered Bicycle Motor Kit Chain Type Gasoline Motor Bike Conversion Kit Single Cylinder Air-cooled Engine Gas Bike Kit for Adult Bikes| US STOCK, 144F(V)
    YIYIONCE

    YIYIONCE 4 Stroke Bicycle Engine Kit 53CC Gas Powered Bicycle Motor Kit Chain Type Gasoline Motor Bike Conversion Kit Single Cylinder Air-cooled Engine Gas Bike Kit for Adult Bikes| US STOCK, 144F(V)

    9.6
    Exceptional

  • 5

    LIAPDG 100CC 4-Stroke Gasoline Engine, 3.5Hp Bicycle Engine Kit Hand Start Gas Motorized Motor Bike Modified Engine for Large Triangular Empty Frames 11.2 x 13.7 x 11 Inch 50 Km/31 Miles/H
    LIAPDG

    LIAPDG 100CC 4-Stroke Gasoline Engine, 3.5Hp Bicycle Engine Kit Hand Start Gas Motorized Motor Bike Modified Engine for Large Triangular Empty Frames 11.2 x 13.7 x 11 Inch 50 Km/31 Miles/H

    9.5
    Excellent
  • See Today’s Deals & Prices

  • 6

    IOUSSJC 53cc Bicycle Engine Kit, 4-Stroke Motorized Bike Kit, Bicycle Conversion Kit for Adult Bikes, Mountain Bikes, Road Bikes
    IOUSSJC

    IOUSSJC 53cc Bicycle Engine Kit, 4-Stroke Motorized Bike Kit, Bicycle Conversion Kit for Adult Bikes, Mountain Bikes, Road Bikes

    9.3
    Excellent

  • 7

    CUBELLIN 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)
    CUBELLIN

    CUBELLIN 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)

    9.1
    Excellent

  • 8

    ZGEXING Bicycle Motorized 49CC 4-Stroke Gas Petrol Bike Engine Motor Kit Chain Scooter，Used for 28 "V Frame Bikes and 26" ATV Bikes
    ZGEXING

    ZGEXING Bicycle Motorized 49CC 4-Stroke Gas Petrol Bike Engine Motor Kit Chain Scooter，Used for 28 "V Frame Bikes and 26" ATV Bikes

    9.0
    Excellent

  • 9

    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 Bikes and 26” ATV Bikes (Chain type)
    DYRABREST

    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 Bikes and 26” ATV Bikes (Chain type)

    8.7
    Very Good

  • 10

    BJTDLLX 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)
    BJTDLLX

    BJTDLLX 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)

    8.6
    Very Good