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100cc 4 Stroke Bike Engine Kit Set Gas Motorized Motor Bicycle Modified Engine

Listed since Jun 2026
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$252.32

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Free shipping (Standard Shipping)

📦 Est. delivery Jun 26, 2026Jun 30, 2026

Ships from Chino, California, US

↩️ Returns accepted · 30 calendar day · seller pays return shipping

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luck5star⭐ Top Rated

100.0% positive · 14,810 feedback

About this item

Specifications Color: Black, Silver 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 Number of Teeth: 44 Ignition Mode: CDI Max Torque: 4.5N-m Bore Stroke: 56*40mm/2.2*1.57inch Displacement: 100CC 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 Gross Weight: 21.05kg/46.4lbs Net Weight: 18.75kg/41.33lbs Chain Cover: 40*7.5cm/15.74*2.95in .

Specifications

StartPrice299.15424
BrandUnbranded
ModelEZ-156F
Starting SystemRecoil Start
TypeForced Air Cooling,4-Stroke,OHV,Single-cylinder, Inclined by 25°
MaterialAluminum, Iron, and Plastic
ColorBlack, Silver
Max Output3HP
Show 16 more specs
Rated Power2KW/3600rpm
Max. Torque4.5N.m/2500rpm
Fuel Tank Capacity1.6L/0.42gal
Fuel Consumption<420 g/KW.h
Oil Capacity0.4L/0.1gal
Oil Consumption≤6.8 g/KW.h
Min. Stable Speed Unloaded3600rpm
Reduction Ratio1:1
Bore x Stroke56x40 mm
Displacement100cc
Compression Ratio7:1
Product Size28.5*35*28cm/11.2*13.7*11in
Number of Cylinders1
Engine Type4-Stroke
Machine TypeScooter
Fuel TypeGasoline

Item description from seller

Read more ▾

Specifications

Color: Black, Silver

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

Number of Teeth: 44

Ignition Mode: CDI

Max Torque: 4.5N-m

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

Displacement: 100CC

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

Gross Weight: 21.05kg/46.4lbs

Net Weight: 18.75kg/41.33lbs

Chain Cover: 40*7.5cm/15.74*2.95in

100cc 4 Stroke Bike Engine Kit Set Gas Motorized Motor Bicycle Modified Engine

Description

Perhaps you are an outdoor enthusiast who enjoys cycling in parks or mountains, and ordinary bicycles can no longer meet your need for excitement. Let's take a look at our bicycle engine kit ! Through installation, it can give your bicycle the speed and excitement of a motorcycle, allowing you to go further in one ride and explore stunning scenery that you have never seen or experienced before! Take our bicycle engine kit home and embark on a more exciting outdoor cycling experience!

Key Features

Durable & Sturdy: The aluminum engine shell, iron fuel tank with baking paint, a 415# steel chain with rust prevention shot blasting process, and a rubber and nylon belt offer corrosion-resistance and wear-resistance , achieving a max bearing capacity of 440 pounds and ensuring superior performance and a longer lifespan.

Strong Power: The engine boasts a robust 3.5HP horsepower, a displacement of 100cc, a max power of 2kw/h, and a max rotating speed of 3600RPM, which provides you with strong power and accelerates your bike to a max speed of 50km/h.

Large Fuel Tank: It measures 11.41*5.9*6.29 inches with a large capacity of 0.52 gallons, allowing it to work for a long time. You don't need to fill the tank frequently, which is very convenient.

Low Fuel Consumption: The overhead valve is used, which effectively helps reduce carbon buildup and dramatically improves fuel savings. The air filter also improves air filtration performance and reduces wear, achieving a fuel consumption of around 0.66 gallons/100km and saving much money on fuel costs.

Quiet Operation : This bicycle engine kit only has slight noise (about 75dB) and vibration when used. You can use it in most outdoor environments without worrying about noise disturbance.

Complete Kit: Our package includes all the parts to convert your bicycle into the electric one, meeting your needs with just one purchase!

Economically Friendly: You can enjoy the speed and passion comparable to motorcycles at a lower price! This four-stroke engine kit is more suitable for people with lower budgets or only short-term needs for motorcycles, allowing you to enjoy faster riding speed and a more exciting life!

Effective Cooling System: By adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting riding.

Details

Comfortable Handle: The ergonomic T-shaped start handle provides a point of application of force for easy and comfortable starting.

Chain Cover: It's made of high-quality iron and can protect you from getting hurt.

Pulling Rope: The pulling rope is made of nylon, which is more wear-resistant and durable.

Engine Switch: The red engine switch helps you easily turn the engine on or off when in use or not.

Application

This product is suitable for mountain bikes, road bikes, gravel bikes, beach bikes and so on with large triangular empty frames.

Specifications

Color: Black, Silver

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

Number of Teeth: 44

Ignition Mode: CDI

Max Torque: 4.5N-m

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

Displacement: 100CC

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

Gross Weight: 21.05kg/46.4lbs

Net Weight: 18.75kg/41.33lbs

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*Bicycle Engine Kit

1*English Manual

All Accessories for Assembly

Notes

• Please carefully read the manual and strictly follow the precautions to have a better experience.

• Please note that professional installation is recommended.

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.

Payment Delivery details Terms of sales About us Contact us Payment

We accept ebay payment 。

Fees such as import duties, taxes are not included in the item price or shipping costs. These charges are the buyer's responsibility.

Delivery details

Shipping:

2-9 working days to: USA

Terms of sales

• We maintain high standards of excellence and strive for hundred percent customer satisfaction. Feedback is very important to us. We hope that you contact us immediately before you give neutral or negative feedback, so that we can address your concerns. It is impossible to address issues if we do not know about them!

About us

Your satis faction is our ultimate goal. We work hard to earn your trust and future business. Our certified technicians have tested each item before shipping. The unit comes with 1 year limited warranty on all manufacturing defects.

a) If you receive a defective item, you may return it or ask for a discount. Please contact us within 14 days after you receive the package.

b) What you returned must be intact and in its original packaging as re? u. Customer is responsible for shipping costs of the returned item.

c) We will cover the cost of shipping back t with the shipping rate indicated in the registration page. We will send you a new unit or refund the full payment you paid.

Thank you.

Contact us

Business Hour Business Hour: Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)

Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.

Please contact us with ebay message.

Please feel free to contact us if you have any questions.

Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)

Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.

Please contact us with ebay message.

Please feel free to contact us if you have any questions.

eBay item #137380218606

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