The kit is upgraded with the GT80 4 petal reed box and the large 16mm Keihn Carburetor assembly.

These GT4 Pro Racing 66cc bicycle engine kits give 3.25 HP “the little powerhouse engine of the industry.”

3.25 HP 2 cycle gas/oil mix bike motor kits. GT4 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 GT4 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.


GT4 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 GT4 Pro Racing 66cc/80cc Slant Head Bike Motor Kit (Standard Finish) now while supplies last at this price.

Convert your bicycle to a motorized bicycle by adding a 2 stroke engine kit to it. The kit fits best on bikes with 25 to 30mm diameter front down tube and 70 degree Vee type frame like a mountain bike but can be installed on larger diameter tube frames with modifications. “Looks Cool” on the older beach cruiser type coaster brake bikes. The motor bolts to the bicycle frame in the center of the frame (additional mounting options available). A second Heavy Duty chain is attached from the motor to the rear wheel via a second sprocket attached to the rear wheel.

Starting:

2 stroke motor kits are started by “bump” starting them. While holding in the clutch, pedal the bike quickly. When you release the clutch after the bike gets to speed, it push starts the motor.

The kit will average around 25-35 M.P.H depending on rider weight and rear sprocket gear ratio.

Gas Mixture

This bike motor kit comes with everything that you'll need except gas and oil since this is a 2 stroke, 2 stroke oil needs to be added to the fuel. Always mix gas in a gas can, not the gas tank. When the engine is new, it would need to be broken in with a richer mixture, after at least 1 tank of gas, then the mix can be “leaned out” (less oil). Never go less than 32:1 ratio (4oz of oil per Gallon).

• New Motor - 16:1 (8 oz of oil per gallon)
• After Broken in - 32:1 (4 oz of oil per gallon)

You will be able to stop or start the engine as you ride. This kit gets maximum fuel efficiency stock at around 100 miles per gallon.

The Motor will require some assembly, the top end of the motor must be installed.

This motorized bicycle engine kit includes:

1. Kent Thruster 700C Men's Fixie Bike
2. GT4 Pro Racing 66cc/80cc Motor 3.25 HP
3. With GT80 Reed Valve & Keihin Carburetor Clone Assembly - $60 VALUE!
4. Friction Clutch; Pedal Start
5. Magneto With Solid State CDI Ignition
6. 44Tooth, 9 Hole Chrome Sprocket
7. 3 Plate Sprocket Kit
8. 2.0 Liter Fuel Tank, Tear Drop Shape (Black Color)
9. Chrome Muffler
10. Push Button Clutch Lever And Cable
11. Twist Throttle With Engine Kill Switch
12. Improved Gas Valve
13. Fuel Line #2
14. Idler Pulley Chain Tensioner with Bearings
15. Chrome Lined Cylinder Wall
16. Head With Center Fire Spark Plug
17. 202 Crankcase Bearings
18. Needle Bearings On Piston Wrist Pin
19. Improved 415 Chain
20. Chain Guard
21. Tool Kit
22. All The Mounting Brackets, Gaskets, And Hardware Including Nylon Locking Nuts
23. Universal Motor Mount
24. Complete User Manual
25. 6-Month Limited Warranty Included - FREE
26. Standard Slant Cylinder Head

The Kent Thruster 700C Men's Fixie Bike combines style, practicality and speed for a one-of-a-kind ride that is sure to excite bicycle enthusiasts. You can have both stunning looks and practical design in one sturdy package. This single-speed Fixie thruster bike features a steel frame and fork with a steel rise stem and alloy rim. This combination creates a sleek-looking piece that is both durable and lightweight. The full-protection chain guard keeps the bike chain on track and away from your legs for a secure ride. It is also fitted with front and rear alloy brakes for added control and stability. The Kent Thruster 700C Men's Fixie Bike is ideal for city dwellers or anybody looking for a bike that's simple to operate and easy to maintain. Its black design and red tires give it a sharp and athletic look. You can use this Kent men's bike to get some vigorous exercise, head to work or school, run errands around town or simply enjoy a nice afternoon.

• Steel frame
• Steel fork
• Alloy brakes front and rear
• 700C alloy rims
• Steel rise stem
• Full-protection chain guard
• Black/red Fixie bike
• Kent men's bike has 1 speed
• Lightweight and durable construction