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100cc Bicycle Engine Kit 2 Stroke Motorized Bicycle Engine Motor Kit Gas Bicycle Engine Conversion Kit with Air-Cooling, Bike Motor Kit Fit for 26"-28" Bikes

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Availability: In Stock.
Fulfilled by Auroborus

Arrives Jun 6 – Jun 8
Order within 22 hours and 41 minutes
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Features

  • FULL UPGRADE KIT- This 100CC bicycle engine kit includes all the parts and accessories needed to convert an ordinary bicycle into a gasoline-powered motorcycle. The electric bike conversion kit upgrade includes: 44-tooth sprocket, Red Speed carburetor and upgraded CDI.
  • UPGRADED TUNABLE HIGH PERFORMANCE CARBURETOR- The bicycle motor kit choke lever on the handlebars, Main jet. (Can be re-jetted), Pilot jet, Copper oil needle, Idle RPM Screw, Idle Air Screw that delivers more fuel with the choke on, instead of restricting air.
  • HIGH EFFICIENCY ENGINE- The motorized bike kit is 50mm bore single piece cylinder/head (increased weight capacity, lower operating temps, easier starting, sustained power output across varied rpm range).
  • PRODUCT PARAMETERS- The 2 stroke engine is Bore&stoke: 50mmx40mm; Ignition Mode: CDI Ignition; Max.Power: 1.9kw/5500r/min; Compression ratio: 6:1; Transmission ratio: 18:1; Cooling: Air-cooling; Starting: Kict starting ; Shifting way: sprocket; Lubricating oil: Two-stroke machine oil; Max.speed: 48km/h; Sparking plug: Z4C 16MMM; Max.Load capacity: 180kg; Tank capacity: 2L; Fuel Type: 90#; Fuel consumption: 5L/100km; Engine type: Gasoline engine
  • SAFETY UNIVERSAL SET- The bike engine kit has 4 bolts attach the engine to your bike frame and this e bike conversion kits come are 8mm vs the standard 6mm. That means the mounts are twice as strong and twice as secure. It is a general-purpose ordinary bicycle upgraded to an electric bicycle. Suitable for most 26"/28" bicycles.

Description

Specifics: Condition: New Bore&stoke: 50mmx40mm Ignition Mode: CDI Ignition Max.Power: 1.9kw/5500r/min Compression ratio: 6﹕1 Transmission ratio: 18﹕1 Cooling: Air-coolingStarting: Kict starting Shifting way: sprocketLubricating oil: Two-stroke machine oil Max.speed: 48km/hSparking plug: Z4C 16MMM Max.Load capacity: 180kgTank capacity: 2L Fuel Type: 90Fuel consumption: 5L/100km Engine type: Gasoline engineN.W :11kgG.W:12kgCtn size:474317CM Package includes:1 x Engine1 x CDI Assembly1 x Fuel Tank (with Valve)1 x Carburetor Assembly1 x Exhaust Muffler1 x Clutch handle1 x Left Handle Grip1 x Twist-grip Throttle with Kill Switch1 x Clutch Cable1 x Throttle Cable1 x Chain1 x Sprocket1 x Chain Idler Pulley1 x Chain Guard1 x Set of Other Mounting Accessories

Brand Name: ‎YUNLAIGOTOP


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


Material: ‎Aluminum


Suggested Users: ‎unisex-adult


Manufacturer: ‎YUNLAIGOTOP


Part Number: ‎motor for bicycles kit


Date First Available: July 26, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 6 – Jun 8

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.

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Top Amazon Reviews


  • All the Parts
Was nice to know that all the part that were mentioned were actually all there. Especially when dealing with a new dealer. I would buy from again. Thank you.
Reviewed in the United States on May 19, 2026 by Kimmie

  • Bike
It fits my bike good
Reviewed in the United States on May 27, 2026 by Billie hill

  • Solid kit with crap for instructions
Crappy directions, you better have some know how and familiarity with motors
Reviewed in the United States on May 22, 2026 by Joseph VanFossen

  • It's worth it It's worth it
Came with everything started immediately surpassed my expectations. Very reliable. Just doesn't Rev as high as I like under load. Mabey the 40 something Tooth sprocket. Starts within one or two pedals. Definitely reliable.
Reviewed in the United States on May 16, 2025 Reviewed in the United States on May 16, 2025 by Michael

  • Make sure to lock tight everything,these little engines have alot of vibration
Works great,started right up after completing the build.
Reviewed in the United States on May 19, 2026 by John Ray Clark

  • 100 cc motor kit
I am very pleased with my motor kit.
Reviewed in the United States on October 24, 2025 by Rachel Bjork

  • Its sufficient
You need to have some knowledge prior to as the directions are not very clear at times
Reviewed in the United States on May 8, 2026 by christy day

  • Completely satisfied
Motor work just fine when I got it and still is
Reviewed in the United States on July 3, 2025 by Denzil Phelps

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