Search  for anything...

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)

  • Based on 18 reviews
Condition: New
Checking for the best price...
$237.98 Why this price?
Save $18.00 was $255.98

Buy Now, Pay Later


As low as $39.66 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Auroborus

Arrives Sep 17 – Sep 18
Order within 12 hours and 3 minutes
Available payment plans shown during checkout

Features

  • 44 TOOTH BIKE MOTOR KIT- The 4 stroke bicycle engine kit converts your bike into an e-bike with a maximum speed of 3600rpm, which is efficient and convenient, allowing you to fully enjoy riding during commuting and short trips
  • 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
  • BIKE MOTOR KIT- About bicycle engine kit is Type: Forced Air Cooling, 4-Stroke, OHV, Single-cylinder, Inclined by 25 Degrees; Starting System: Recoil Start; Max Output: 3HP; Rated Power: 2KW/3600rpm; Max. Torque: 4.5N.m/2500rpm; Fuel Tank Capacity: 1.6L/0.42gal; Min. Stable Speed Unloaded: 3600rpm; Displacement: 100cc
  • CUSTOMER SERVICE- We aim to provide quality products and services. If you have any problems, please feel free to contact us. We will reply and solve the problem for you as soon as possible

Brand Name: ‎YUNLAIGOTOP


Warranty Description: ‎Free warranty within one year for manufacturer defects only


Model Name: ‎Bicycle Motor Kit


Color: ‎Black, Silver


Material: ‎Aluminum, Iron, and Plastic


Suggested Users: ‎unisex-adult


Manufacturer: ‎YUNLAIGOTOP


Included Components: ‎1* 100cc 4-Stroke Gasoline Engine


Size: ‎With Belt


Date First Available: July 12, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 17 – Sep 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Runs perfect
Everything came packaged nice and with care. Nothing was broken or damaged. All hardware and parts seemed to be good quality no bolts stripped while torquing everything down. Motor started right up and has operated great. Would recommend this for anyone wanting one.
Reviewed in the United States on March 30, 2024 by Dan Grummet Dan Grummet

  • Awesome little motor.
Started right up no problems. It runs great. It fits great on my beach cruiser. It came with everything as shown in the picture. Nothing was broken. Showed up earlier than expected.
Reviewed in the United States on May 30, 2024 by Dacoda Dacoda

  • It's a good motor but not a good transfer piece
You will have to put a 30 series comet on any of the 4 stroke 100cc...it's sad but true
Reviewed in the United States on October 15, 2024 by Buyers guide for health Buyers guide for health

  • Everything
I believe this motor is better than a 2 stroke bicycle engine
Reviewed in the United States on August 30, 2023 by Robert Cavilee

  • Not happy with motor.
Cracked motor housing
Reviewed in the United States on March 22, 2025 by Tony Younger Tony Younger

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...