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100cc Bicycle Engine Kit, 4 Stroke 3.5HP Gas Motorized Bike Motor, Chain Drive Conversion Kit for 26-28 Inch Bikes with 0.52 Gal Fuel Tank, 31 MPH Max Speed, 440 lbs Capacity

  • Based on 2 reviews
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Availability: In Stock.
Fulfilled by AYLYOTOY

Arrives Jul 21 – Jul 23
Order within 11 hours and 16 minutes
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Features

  • Durable Aluminum and Steel Construction: Aluminum engine shell, iron fuel tank with baking paint, and 415# steel chain with shot blasting. This bicycle engine kit does not rust easily and handles wear wellsupports up to 440 lbs for long-term reliability.
  • 3.5HP Powerful 4-Stroke Engine: 100cc displacement with 2kW rated power and 3600 RPM max speed. Accelerates your bike up to 31 mphstrong gas motorized bike kit for daily commuting or weekend rides.
  • Large 0.52 Gallon Fuel Tank: Tank measures 11.8x5.5x5.9 inches with 0.52 gal capacity. Ride longer without frequent refillsconvenient 100cc bicycle engine kit for extended trips.
  • Low Fuel Consumption and Overhead Valve: Overhead valve design reduces carbon buildup and saves fuel. Consumption around 0.66 gal per 62 mileseconomical 4 stroke bicycle engine kit for budget-conscious riders.
  • Quiet Operation and Complete Kit: Operates at about 75 dB with minimal vibration. Includes all parts to convert your bicycleenjoy motorcycle-like speed at a fraction of the cost.

Description

This 100cc bicycle engine kit is suitable for mountain bikes, road bikes, gravel bikes, beach bikes, etc. with large triangular empty frames. Fuel Efficient: Only 0.66 gal per 62 miles, Overhead valve design reduces carbon buildup and saves fuel. Quiet and Smooth: About 75dB low noise, Quieter than normal conversation, minimal vibration. Comfortable riding experience. Chain Cover: Made of high-quality iron and can protect you from getting hurt. Pulling Rope: The pulling rope is made of nylon, which is more durable. 3.5HP Strong Power – 100cc displacement, 3600 RPM max speed. Effortless climbing, top speed 31 MPH. 0.52 Gallon Long Range – 11.8x5.5x5.9 inches tank reduces refueling stops. Perfect for weekend long rides. Easy Pull Start – Ergonomic T-shaped handle, saves effort. Easy ignition for all riders. 440 lbs Load Capacity – High-strength steel. Fits 26-28 inch large triangular frame mountain bikes and road bikes. This complete bicycle engine kit includes all necessary components plus a detailed English manual. The conversion process is clear and straightforward. Assembly Required: Yes Fuel Tank Capacity: 2L/0.52 Gallons Fuel Consumption: 2.5L/0.66 Gallons/100KM Lubricant Capacity: 0.4L/0.1 Gallons Gasoline Type: 92#, 95# 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 1*Bicycle Engine Kit 1*English Manual All Accessories for Assembly

Manufacturer: ‎AYLYOTOY


Brand: ‎AYLYOTOY


Model: ‎4 stroke bicycle engine kit


Item Weight: ‎46.1 pounds


Product Dimensions: ‎28.35 x 12.6 x 10.63 inches


Item model number: ‎bicycle engine kit


Exterior: ‎Painted


Manufacturer Part Number: ‎gas motorized bike kit


Date First Available: May 2, 2026


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 21 – Jul 23

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


  • Needs a new clutch
The clutch is sticking
Reviewed in the United States on June 28, 2026 by Woodruff

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