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GT7 Pro Racing 66cc/80cc Motorized Bicycle

  • $ 36900
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GT7 Pro Racing 66cc/80cc Motorized Bicycle

NOTE: Due to high demand, the bicycle is currently unavailable. You may purchase the engine kit separately using this link.

These GT7 Pro Racing 66cc bicycle engine kits give 3.85 HP “the little powerhouse engine of the industry.”

3.85 HP 2 cycle gas/oil mix bike motor kits. GT7 Pro Racing 66cc/80cc Bike Motor Kit: 1/2 gal. gas tank, chain and sprocket, handlebar controls, mounting hardware package and instruction sheet. Total wt. is 24 to 27 lbs.

Starting your GT7 Pro Racing 66cc/80cc Bike Motor Kit (Standard Finish): Pedal normally or use engine power at your option. The engine starts quickly when the handlebar clutch lever is released while pedaling. Twisting the throttle controls the speed to 45 mph. Speed depends on rear sprocket ratio and weight of rider.

GT7 Pro Racing 66cc/80cc Bike Motor Kit (Standard Finish) fits best on bikes with 25 to 30mm diameter 70 degree Vee type frames but can be installed on larger diameter tube frames with modifications. “Looks Cool” on the older cruiser type coaster brake bikes.
This bike motor 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 gives more speed and gets around 150 miles on a gallon of gas. Please Tell a Friend about this product and help spread the word about Motorized Bicycles.

Get your GT7 Pro Racing 66cc/80cc Slant Head Bike Motor Kit (Standard Finish) now while supplies last at this price.

This motorized bicycles includes:

  1. 26" Men's Hyper Cruiser
  2. GT7  Pro Racing 66cc/80cc Motor 3.85 HP
  4. With GT80 Reed Valve & Keihin Carburetor Clone Assembly - $60 VALUE!
  5. Friction Clutch; Pedal Start
  6. Magneto With Solid State CDI Ignition
  7. 44Tooth, 9 Hole Chrome Sprocket
  8. 3 Plate Sprocket Kit
  9. 2.0 Liter Fuel Tank, Tear Drop Shape (Black Color)
  10. Chrome Muffler
  11. Push Button Clutch Lever And Cable
  12. Twist Throttle With Engine Kill Switch
  13. Improved Gas Valve
  14. Fuel Line #2
  15. Idler Pulley Chain Tensioner with Bearings
  16. Chrome Lined Cylinder Wall
  17. Head With Center Fire Spark Plug
  18. 202 Crankcase Bearings
  19. Needle Bearings On Piston Wrist Pin
  20. Improved 415 Chain
  21. Chain Guard
  22. Tool Kit
  23. All The Mounting Brackets, Gaskets, And Hardware Including Nylon Locking Nuts
  24. Universal Motor Mount
  25. Complete User Manual
  26. 6-Month Limited Warranty Included - FREE
  27. Extra Standard Slant Cylinder Head


Light Weight Aluminum Frame. Easy to use pedal backwards coaster braking. Platform Cruiser Pedals. Light Weight Alloy Wheels. Padded Spring Comfort Seat Full wrap fenders. Large upright handle bars that put the riders in an upright comfortable ridding postion. Great for casual rides around town, this classic cruiser is equipped with a simple pedal backwards coaster brake and full wrap fenders. The large padded spring saddle and multi-surface baloon tires provide a smooth and comfotable riding experience.



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


Only California shipped orders are charged sales tax

GT6 66cc Slant Head (Standard Finish) Bicycle Engine Kit FAQs:

  • Question: How much weight will this engine kit add to a bike?
  • Answer: The 48cc, 66cc/80cc engine kits will add 24 lbs to your bike. The 49cc engine kit will add 31 lbs to your bike. Note: We suggest a 26" Men's standard V frame bike.
  • Question: What fuel do I use for this engine kit?
  • Answer: This 2 stroke stroke motor kit requires an Oil And Gas Mixture as follows:

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

    You should get 100-150 Miles per gallon and achieve 20-40 MPH depending on climate, altitude, bike weight and rider weight
  • Question: How do I start and stop my bike with the GT2B 48cc?
  • Answer: The starting and stopping of this two stroke motor kits is this:

    You can still pedal bike like normal with clutch lever held in or locked in with button.

    To Start: It's just like riding a bike normally, hold in the clutch and pedal the bike to get some speed, then release the clutch to "Jump Start" the motor. If you know of or remember jump starting a Manual VW Bug this start method is the same.

    To Stop: While the engine is running you can hold in the clutch and the engine will idle. Push the Kill Switch on the throttle to kill the motor. The clutch must be held in when the bike is in motion or the motor will keep running.

Bicycle Requirements:

This bicycle motor engine kit fits most Mens 26" and larger bicycles which includes mountain, cruiser, chopper and road bikes with a V-frame with at least a 8.5" height clearance for the engine. Larger frame size requires drilling into bike frame and use of the universal face plate.


This 66cc/80cc bicycle motor engine kit is about 8.5" height 7" length 5" width and fits on most standard 26" or 25mm 29mm frame bicycle frame tubes. Larger frame size requires drilling into bike frame and use the universal face plate. This engine kit only adds about 24 lbs to your bike.

* Orders received Monday - Friday by 3:00PM EST are eligible for 

Same Day Shipping! Except for USPS which ships the next business day.

We Can ship to PO BOXES at this time. For International and Canadian shipping we suggest UPS STANDARD. This does not cover Customs Brokerage, Duties, and Taxes… these are charged to the consignee on delivery). We have found that this is the cheapest way to send packages Internationally and to Canada.

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.

Skills And Experience:

The buyer may need some basic hardware skills, tools, and it takes roughly around 2-3 hours to install and to do some adjustments and fine tuning.

Notices And Disclaimer:

  • We cannot guarantee that this kit will fit your specific individual bike(s).
  • Operating a bike, motorized bicycle or bike with a bicycle engine kit installed involves some risk of serious bodily injury. Buyer accepts responsibility for any and all vehicle operation that may lead to personal injury, economic loss, social distress, other losses, costs and damages.
  • Seller is not responsible for injuries and/or damages resulting from operating this motorized bicycle or bicycle engine kit.
  • Seller is not responsible for misuse of this kit or any warranty after installation.


Disclaimer: Down through the years China bike engine factories have always advertised their biggest engine as 80cc therefore we have listed them the same way on our website. However, the bore and stroke of an 80cc being 47x38mm only equals 66cc. Therefore there is no such thing as an 80cc bike motor and it truly does not exists and we want to make sure that you are aware of this.

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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