4G TBelt Drive Kit. This 4 stroke motorized bicycle engine kit comes with everything you need to convert most V-frame bicycle to a 49cc gas powered scooter. Simply clamp on the engine, install the sprocket, gas tank, and other hardware and you’ll be up a running in a couple of hours. Installation requires some tools and a moderate mechanical apptitude.

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This 4 stroke 4g Tbelt Drive kit for a motorized bicycle comes with everything you need to convert most V-frame bicycle to a 49cc gas powered scooter. Simply clamp on the engine, install the sprocket, gas tank, and other hardware and you'll be up a running in a couple of hours. Installation requires some tools and a moderate mechanical apptitude.

High quality 4 stroke Hua Sheng engine gets you 150mpg with top speeds of about 35 MPH (pretty fast on a bicycle). These things are built to last and require virtually no maintenance.

With the built in clutch you maintain full function of the original bike. Pedal and ride your bike like normal. When you want to engage the engine simply give the engine gas and go. To power off simply press the included kill switch.

Get answers to commonly asked questions in the FAQ's section.

Kit Includes:Kit Includes: 4 cycle 49cc 2.5 hp HuaSheng engine T belt drive transmission 100/12 tooth configuration tapered drive shaft 3 piece wide crank 1pc to 3pc conversion kit 48 tooth 9 hole chrome sprocket 2.5L fuel tank Twist throttle & cable with kill switch Heavy duty chain All the mounting brackets, gaskets, and hardware. Complete users manual / installation instructions. 6 month limited warranty.	New 4-cycle 49cc Bicycle Engine KitsEasily Convert Your V-Frame Bicycle!

Engine Specifications:
Engine Type	Air-cooled 4-Stroke OHV Single Cylinder
Max Power(kw/r/min)	1.5 KW / 2 HP / 6800
Fuel Consumption(g/kw·h)	≤480
Fuel Consumption(L/h)	0.78
LWA(dB(A))	101
Net Weight(kg)	7
Displacement(cc)	49.1
Fuel Tank Capacity(L)	--
Oil Capacity(mL)	250
Ignition System	TCI
Compression Ratio	7.4
Carburetor	Float
Starting System	Recoil
Approximate Dimensions	Height - 9 1/2", Width - 11", Length - 9"

This kit is legal in almost all states. Most laws stipulate that any motorized vehicle under 50cc is legal to operate without a license, registration, or insurance. You can find a kit with a larger engine, but you will be required to have a drivers license and you must license, register, and insure your scooter. Don't bother with the hassle--get the biggest engine available that doesn't require license, registration, and insurance!

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.