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Chain Drive Bicycle Engine Kits
 
Dependant on rider size, riding conditions, sprocket and engine choice a top speed of 30 + mph is easily attainable with a 33cc engine and we offer many size and brands of quality engines. All kits have a centrifugal clutch between the gear box and engine, (so the engine can idle and stay running while coasting or stopped). The custom hub has threads on both sides. On the right side (your pedal side) gears remains the same, you can coast and change gears. The left hand threaded freewheel sprocket on the left side of the hub and the gear on the gearbox drives the engine side. Our gear box will never need replaced and it's made to last a Life Time and them some.
STANDARD GEAR & CHAIN DRIVE KITS FOR BICYCLES: (outside drive)
FOUR STROKE ENGINES
TWO CYCLE ENGINES
 
CycleHappy.com
 
CycleHappy.com
Chain Drive Kit, Subaru Robin 33.5 cc (1.60 hp.) Four Stroke, for Bicycles On Sale
Robin - Subaru EH035, 33.5 cc 1.60 hp with the 24 oz tank, Micro Four stroke. 1/2 inch thick gears

Subaru&nbs...

 
 
$599.00
Sale Price: $549.00
 
(More Info)
 
Quantity:
Add a Pre Built Wheel:
Size of Gear on Gearbox:
to add a sprocket, longer throttle cable, or extension brackets, etc...:
 
CycleHappy.com
Chain Drive Kit, Honda GX35, 35cc (1.60 hp.) Four Stroke engine. for bicycles On Sale

Honda GX35...

 
 
$599.99
Sale Price: $579.00
 
(More Info)
 
Quantity:
Add a Pre Built Wheel:
Size of Gear on Gearbox:
to add a sprocket or longer throttle cable, etc...:
 
 
CycleHappy.com
Chain Drive Kit, Honda GX50, 49.3 cc (2.1 hp.) Four Stroke, for Bicycles On Sale

Honda GX50...

 
 
$799.99
Sale Price: $739.00
 
(More Info)
 
Quantity:
Add a Pre Built Wheel:
Size of Gear on Gearbox:
 
 
CycleHappy.com
Chain Drive Kit, Mitsubishi TLE43 42.7cc (2.2 hp) Very Quiet Two Cycle, for Bicycles

CycleHappy.com

Mitsubishi...

 
 
$629.00
 
(More Info)
 
Quantity:
Add a Pre Built Wheel:
Size of Gear on Gearbox:
to add a sprocket or longer throttle cable, etc...:
 
 
CycleHappy.com
 
Chain Drive Kit, ,Subaru Robin EHO35 33.5 cc (1.60 hp.) Four Stroke engine. INSIDE DRIVE, for Bicycles

Subaru Rob...

 
 
$549.00
 
(More Info)
 
Quantity:
Add a Pre Built Wheel:
Size of Gear on Gearbox:
to add a sprocket or longer throttle cable, etc...:
 
 
CycleHappy.com
 
Chain Drive Kit, Honda GX35, 35cc (1.60 hp.) Four Stroke engine. INSIDE DRIVE, for bicycle On Sale

Honda GX35...

 
 
$599.00
Sale Price: $579.00
 
(More Info)
 
Quantity:
Add a Pre Built Wheel:
Size of Gear on Gearbox:
to add a sprocket or longer throttle cable, etc...:
 
 
CycleHappy.com
 
Chain Drive Kit, Honda GX50, 49.3 cc (2.1 hp.) Four Stroke, INSIDE DRIVE, for Bicycles On Sale

Honda GX50...

 
 
$799.99
Sale Price: $739.00
 
(More Info)
 
Quantity:
Add a Pre Built Wheel:
Size of Gear on Gearbox:
to add a sprocket or longer throttle cable, etc...:
 
 
CycleHappy.com
 
Chain Drive Kit, Mitsubishi TLE43 42.7cc (2.2 hp) Very Quiet Two Cycle, INSIDE DRIVE, for Bicycles

Mitsubishi...

 
 
$629.00
 
(More Info)
 
Quantity:
Add a Pre Built Wheel:
Size of Gear on Gearbox:
to add a sprocket or longer throttle cable, etc...::
 
 
CycleHappy.com
 
Gear and Chain Drive Kit
 
motorized mountain bike, honda racing 21 speed mountain bike with honda 31cc 4 stroke gas engine, freewheel chain drive, bicycle, moto bike, bike with engine
Tanaka 47R 47cc (2.80 hp.) Two Cycle, for Bicycles
 
Robin 33.5cc (1.70 hp.) Mounted on Trike
This is the Jeep Grand Cherokee Larado with our 33.5cc Subaru Robin 4 - Stroke engine Chain Drive kit. The rider saves $$ riding back and forth to work at 150 Mpg. YES that is ONE HUNDRED AND FIFTY MILES PER GALLON
 
We have current customers who have more than 50,000 + miles on our kits (gear box and rear custom hubs) and they are still running strong since 1984. The Robin - Subaru, Honda, Mitsubishi & Tanaka engines are rated for 600 + hours of use. We have had many of these engine run 2 & 3 times the rating. Engine life in miles. 600 hours @ 30 mph = 18,000 miles. Your engine could get as many as 54,000 miles or more.
Engine Manufactures Pages
 
 
CycleHappy.com