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GT80 Bicycle Racing Engine Kit 66cc - 4.5 HP with Ported Cylinder

  • $ 38900

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GT80 Bicycle Racing Engine 66cc - 4.5 HP


How to Install The Top End of a 80cc 66cc 48cc 2-Stroke Bicycle Engine Kit



GT80 1

GT80 2

GT80 3

GT80 4

This bicycle motor engine kit comes with everything that you'll need except gas and oil! You will be able to stop or start the engine as you ride. There is no rope pulling needed and it goes up to 40 MPH and gets around 150 miles on a gallon of gas. Please Tell a Friend about this product and help spread the word aboutMotorized Bicycles.

Get your GT80 Bicycle Racing Engine Kit 66cc - 4.5 HP

This bike motor engine kit includes:

  1. GT80 Bicycle Racing Engine
    4.5 HP
  2. Ported Cylinder - High Performance
  3. Reed Valve - High Performance
  4. Keihin Carburetor Clone - High Performance
  6. Expansion Chamber Muffler - High Performance
  7. Supercharge CDI - High Performance
  8. CNC High Sprocket Assembly - High Performance
  9. CNC Universal Mount - High Performance
  10. Spring Chain Tensioner - High Performance
  11. Friction Clutch; Pedal Start
  12. Magneto With Solid State CDI Ignition
  13. 2.0 Liter Fuel Tank, Tear Drop Shape (Black Color)
  14. Push Button Clutch Lever And Cable
  15. Twist Throttle With Engine Kill Switch
  16. Improved Gas Valve
  17. Fuel Line #2
  18. Chrome Lined Cylinder Wall
  19. Head With Center Fire Spark Plug
  20. 202 Crankcase Bearings
  21. Needle Bearings On Piston Wrist Pin
  22. Improved 415 Chain
  23. Chain Guard
  24. Tool Kit
  25. All The Mounting Brackets, Gaskets, And Hardware Including Nylon Locking Nuts
  26. Extra Standard Universal Motor Mount
  27. 6-Month Limited Warranty Included - FREE

Gas And Oil Mixture For Fuel Ratio: (Use of a synthetic 2 stroke oil is recommended.)

This bicycle motor engine kit is a 2 cycle/2 stroke design, therefore, a gasoline/oil mixture is necessary as follows:

When New: 16 to 1 (8oz per Gallon)
After 2 Tanks Of Break In: 32 to 1 (4oz per Gallon)

The engine crankshaft bearings are lubricated from the oil in the gas mix. A rich break in oil mixture ensures bearings will not cease during engine break in period.

How to Install 80cc 66cc 48cc 2-Stroke Bicycle Engine Kit



* Orders received Monday - Friday by 3:00PM EST are eligible for
Same Day Shipping! Except for USPS which ships the next business day.


Our gasoline operated products are NOT compliant with Environmental Protection Agency ( E.P.A. ) or California Air Resources Board (C.A.R.B) for the use on/off Public roads. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and NOT for on/off public roads.

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If you need help with installation or troubleshooting, kindly use our Builder Locator to find builders near you. Builders are experts with motorized bicycles.

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