100CC 3.5hp Bicycle Engine Kit 4-Stroke Gas Petrol Motorized Bike Bicycle Engine Motor Gasoline Engine Kit with Air Cooling for Mountain Bikes/Road bikes/Gravel bikes

SpecificationsColor: Black, SilverType: Single Cylinder, 4-stroke, Air-coolingMaterial: Aluminum, Iron, #415 Steel, Rubber, NylonSurface Treatment: Baking Paint, Rust Prevention Shot BlastingAssembly Required: YesStarter System: Hand StartNumber of Teeth: 44Ignition Mode: Electronic IgnitionMax Torque: 4.5N-mBore Stroke: 56*40mm/2.2*1.57inchDisplacement: 100CCHorsepower: 3.5HPRated Power: 2kw/hMax Rotating Speed: 3600rpmMax Speed: 50km/31miles/hCompression Ratio: 7:1Fuel Tank Capacity: 2L/0.52 GallonsFuel Consumption: 2.5L/0.66 Gallons/100KMLubricant Capacity: 0.4L/0.1 GallonsGasoline Type: 92#, 95#Max Load Bearing Capacity: 200kg/440lbsNoise: About 75 decibelsGross Weight: 21.65kg/47.73lbs Net Weight: 19.2kg/42.32lbs Chain Cover Size: 41*7.5cm/16.14*2.95in Fuel Tank Size: 30*14*15cm/11.81*5.51*5.9in Gear Diameter: 18cm/7.08in Diameter of Bicycle Teeth Disc: 18cm/7.08in Engine Size: 36*28*23cm/14.17*11.02*9.05in Package Size: 71*35*28.5cm/27.95*13.77*11.22in Package Included 1*Bicycle Engine Kit1*English ManualAll Accessories for AssemblyNotes1. Please carefully read the manual and strictly follow the precautions to have a better experience. 2. Please note that professional installation is recommended.3. Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.

• STRONG AND DURABLE: This bike engine kit includes aluminum alloy engine housing, baked iron fuel tank, steel chain, nylon cover, sturdy and durable, with a maximum load capacity of 440 lbs, superior performance and longer service life.
• POWERFUL POWER: The engine 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: It measures 11.81*5.51*5.9 inches and has a large capacity of 0.52 gallons for long time working. You don't need to refill the tank frequently, which is very convenient.
• LOW FUEL CONSUMPTION: It adopts overhead valve, which effectively helps to reduce carbon buildup and greatly improve fuel saving. 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.
• QUIET RUNNING: This bicycle engine kit operates with only a low level of noise (approximately 75 decibels) and vibration. You can use it in most outdoor environments without worrying about noise interference.