2019 Gas Bike Jet 66cc/80cc Motorized Bicycle

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Retail Price: $1,399
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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 includes:

26" Roadmaster Granite Peak Men's Bike

Silver Slant 66cc/80cc Angle Fire Slant Head Engine 2.75 HP

Comes with Super Charge CDI

Friction Clutch; Pedal Start


44Tooth, 9 Hole Chrome Sprocket

3 Plate Sprocket Kit

2.0 Liter Fuel Tank, Tear Drop Shape (Black Color)

Chrome Muffler

NT Carburetor

Push Button Clutch Lever And Cable

Twist Throttle With Engine Kill Switch

Improved Gas Valve

Fuel Line #2

Idler Pulley Chain Tensioner with Bearings

Improved NT Carburetor

Chrome Lined Cylinder Wall

Head With Center Fire Spark Plug

202 Crankcase Bearings

Needle Bearings On Piston Wrist Pin

Improved 415 Chain

Chain Guard

Tool Kit

All The Mounting Brackets, Gaskets, And Hardware Including Nylon Locking Nuts

Universal Motor Mount

Complete User Manual

6-Month Limited Warranty Included - FREE|

Riddle me this; what is a great bike value that you'll enjoy riding for years? The Roadmaster Granite Peak is a bike that will get you where you need to go and allow you to have a little fun along the way. The features include a steel mountain style frame with the front suspension fork, 18-speed twist shifters, three-piece mountain crank, and alloy wheels. The tires are thick like a mountain bike tire and so versatile that you can plan a ride just about anywhere, from a beach boardwalk to off-road adventures. Roadmaster has been a trusted American value in recreational bike riding for decades.

Mountain: front suspension

Popular for trails and casual riding; suspension improves handling for off-road

Rugged trails and path riding

Steel mountain style frame

18-speed twist shifters

Front and rear linear pull brakes

Alloy wheels and 3-piece crank