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100cc Bicycle Engine Kit, 2 Stroke 4-Stroke Bike Motor Kit, Gas Motor for Bicycles Kit for Bikes with Large Triangular Frame Space

4.3 (6) Write Review
Free shipping on orders over $29.99

$165.99

$ 72 .99 $72.99

In Stock

1.Size:100cc 2-stroke Engine Kit (36 Tooth Sprocket)


  • 【Install Suggest】 If you are inexperienced or installing an engine kit for the first time, please read our Video, or if you have any questions contact us in time. The Installation needs Professional hardware skills and tools, and about 2-4 hours of installation and fine-tuning.
  • 【100cc Bicycle Engine Kit】Come with 100cc 4-Stroke Gasoline Engine, Fuel Tank, Base Bracket, Exhaust Pipe, 44 Tooth Chain, Chain Tensioner, Chain Guard, 2* Fixed Iron Pieces, Spark Plug Tool, Fuel Line, Fuel Tank Cap, Exhaust Cushion, Fuel Filter, Fuel Valve, Chain Tension Adjusting Tool, English Manual.
  • 【100cc 4 Stroke Bicycle Engine】It uses a 4-stroke engine, more stable, more reliable and quieter. Low noise level for a 4-stroke engine will not produce too much noise when riding and creates a good riding environment for you. This engine has a forced air-cooling system for providing good heat dissipation while working, extending its service life.
  • 【Efficiency Riding】This kit converts your bike into a motorized bicycle, with max speed of 3600 rpm for great efficiency and convenience, allowing you to fully enjoy the fun of riding on your commute and short journeys. 100cc 4-stroke motorized bicycle engine kit fits for beach bikes with large triangular frame space.
  • 【4 Stroke Bicycle Engine Kit】The bicycle motor kit are more stable, reliable and quieter than two-stroke engines. At the same time, the 56mm bore cylinders increase load carrying capacity and lower operating temperatures, making them easier to start while providing continuous output over a range of speeds.


Product Description

bike engine kit 100cc
bicycle motor kit 100cc

Type: Single Cylinder, 4-stroke, Air-cooling

Material: Aluminum, Iron, #415 Steel, Rubber, Nylon

Surface Treatment: Baking Paint, Rust Prevention Shot Blasting

Assembly Required: Yes

Starter System: Hand Start

Displacement: 100CC

Number of Teeth: 44

Ignition Mode: CDI

Max Torque: 4.5N-m

Bore Stroke: 56*40mm/2.2*1.57inch

  • Horsepower: 3.5HP
  • Max Power: 2kw/h
  • Max Rotating Speed: 3600rpm
  • Max Speed: 50km/h
  • Compression Ratio: 7:1
  • Fuel Tank Capacity: 2L/0.52 Gallons
  • Fuel Consumption: 2.5L/0.66 Gallons/100KM
  • Lubricant Capacity: 0.6L/0.15 Gallons
Gasoline Type: 92#, 95#
Max Load Bearing Capacity: 200kg/440lbs
Noise： About 75 decibels
Chain Cover: 40*7.5cm/15.74*2.95in
Fuel Tank Size： 29*15*16cm/11.41*5.9*6.29in
Gear Diameter： 18cm/7.08in
Diameter of Bicycle Teeth Disc 18cm/7.08in
Engine Size: 38*29*23.5cm/14.96*11.41*9.25in
Package Size: 73.5*35*28cm/28.93*13.77*11.02in

Package Included

1* Fuel Tank 1* 100cc 4-Stroke Gasoline Engine
1* Base Bracket 1* Exhaust Pipe
1* 44 Tooth Chain 1* Chain Tensioner
1* Chain 1* Chain Guard
2* Fixed Iron Pieces 1* Spark Plug Tool
1* Fuel Line 1*Fuel Tank Cap
1* Exhaust Cushion 1*Fuel Filter
bike motor kit 100cc

Melissa Butler
2025-07-22 11:41:58
I love the engine. Love the torque. But the transmission gearbox is bad on mine and can't find a replacement for it anywhere. All of the transmissions/gearboxes that I have found are for a 49cc engine. I really need a new one but I can't find one.
Nicholas D Provo
2025-04-02 20:10:33
The chain guard for the motor could have been built out of something a bit more non meltable
Alethea
2025-01-25 19:24:36
Works as advertised. My 12 year old son installed on an old mountain bike by himself. Worth the money just for what he learned and he’s enjoyed it all summer.
Enrique hernandez
2025-01-02 13:59:29
I like the product
Heidi
2024-12-24 14:41:48
Installation makes it easier to ride uphill or on long rides.
Kamel
2024-11-23 12:25:24
Easy to install, the motor is very powerful, the key is very cost-effective!