The latest addition to our popular line of bicycle engine kits is the 4 stroke bicycle engine kits with all of the latest features and upgraded components. The all new 4 stroke bicycle engine kit features a centrifugal clutch and pull start enhancements. This 4 stroke bicycle engine kit is truly the cream of the crop of bicycle engine kit industry. With this 4 stroke engine, there is no need to mix the oil and fuel like the 2 stroke engines. Instead, this engine features an independent oil reservoir which keeps the engine well lubricated. Due to this, the 4 stroke engines are know for their reliability and long life. Also, with the centrifugal clutch feature, there is no need to engage and disengage the engine manually. Similar to an automatic transmission in a car, you simply pull the throttle to go! Then at a standstill, the engine will automatically disengage so that the engine will stay running at a stop. This kit comes with every thing that you'll need to convert bicycle into a motorized bike. You will still be able to pedal the bike and ride like normal. You can stop or start the engine as you ride. Don't be fooled by other retailers, selling outdated, non-EPA approved, old generation engines! All of our engines feature the latest updates, including high quality needle bearings and Japanese ball bearings. Older generation engines use cheap bushings that do not last! We make certain that all of our manufactures abide by strict quality control assurance measures and use the highest quality material so that we can make certain that all of our customers get only the best!
With these strict quality assurance measures, we are able to offer a industry leading 6 month warranty!
4 - 5 HP (horse power)
25 to 40 mph depending on the gear ratio and weight.
MPG 100-150 miles per gallon
Independent drive sprocket and chain does not interfere with your current drive chain and peddling
49cc engine kit is about 9" height 9.5" length 7" width. Kit fits on standard 25mm to 29mm frame tube. Larger frame size requires drilling into bike frame and use the universal face plate. Ensure proper fit by reviewing the minimum dimension requirements diagram on the right.
Note: The 4-Stroke Pull Start Engine is wider than our standard 2-stroke engines. As such, depending on your bicycle, it may require the use of the extra wide crank assembly included in the kit.
For installing this kit buyer may need some basic hardware skills, tools, and take around 2-3 hours to install and do some adjustments. Seller is not responsible for misuse or this kit or any warranty after installation.
Industry Leading 6 Month Warranty against manufacture defects. We cannot warranty issues caused by user neglect or improper use of engine.
7. Upgraded Chain Tension Guide with Bearing Wheel
8. Chain Guard
9. Spark Plug
10. CD Ignition Coil
11. Upgraded Twist Throttle and cable with matching grip
12. Engine Mounting Base
13. Black Teardrop Gas Tank (2L)
14. Fuel Line
15. Throttle Cable
16. Gasoline Tank Switch
17. Sprocket Clamp Assembly
18. Sprocket Clamp Bolts
19. High Quality Needle Bearings on Both Ends Crank
20. 44 Tooth Chrome Sprocket with 9 Holes
22. Kill Switch
23. Bonus: Spark Plug Removal Tool
24. All the Needed Mounting Brackets, Gaskets, and Hardware
Fits Most 26" Wheel Bikes (Mountain, Cruiser, Chopper, Road) with V-frame.
Disclaimer: Operating a bike, motorized bicycle or bike with a bicycle engine kit installed involved some risk of serious bodily injury. Buyer accepts responsibility for any and all vehicle operations 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. Not all motorized bicycles are allowed on road use. We make no guarantee as to the road legality of the bicycle engine kits. The risks that the Seller, Niche Webstores, Inc is not responsible for include among other things: falling, collisions with pedestrians, street, highway or roadway vehicles, striking obstructions or other person, unsafe weather conditions including temperature exposure (hypothermia, sunstroke, sunburn, heat exhaustion and dehydration.
BikeBerry.com offers a 30 day warranty on all products. If for any reason, your product is defective. Please contact us directly through our contact us page. In most cases, if there is a problem with a part on the merchandise, the defect part can be sent to you free of charge. Photos of the damaged goods must be provided prior to replacement parts being sent to you. In some cases, the customer is required to return the defective part to us for an exchange. Damage claims due to shipping must be reported within 5 business days of receiving the package.
All bicycles and unicycles come with a 1 year warranty on frame failure and 6 month warranty on parts against any manufacture defects.
All Flying Horse and Mega Motors Brand bicycle engine kits come with a 6 month warranty against any manufacture defects.
All Mini Bikes and Gasoline Scooters and Mopeds come with a 3 month warranty against any manufacture defects.
All Electric Powers Scooters and Electric Mopeds come with a 6 month warranty against any manufacture defects.
All warranty replacements must be pre-approved by contacting our RMA Department through the contact us page. Please provide us with your order number, date of purchase and problem with item.
Once your request has been received, you will be contacted within 5 business days with instructions for sending back the item(s). You must re-package any item(s) being returned as it was delivered to you, with all components, materials and documentation. We will ship the replacement once we have received and processed the returned item(s). If you request for a refund, we will notify you via Email of your refund once we have received and processed the returned item(s). All refunds will be limited to and based on the current price of the item minus any restocking fees.
The following are warranty limitations and exclusions for bicycle engine kit product(s):
• Spark plugs
• Standard wear and tear: plastic parts & • components (color coordinated housing, brakes, brake handles, seats, chain and tires.
• Extreme riding, racing or competition
• Loss of time without vehicle
• Vandalism, fire or theft
• Crash or accident
• Unauthorized outside repair
• Warranty does not cover or reimburse any outside labor charges
• Warranty does not cover any towing or shipping charges to and from for any reason including but not limited to repair, return or exchanges
• Defective warranty part(s) are required to be returned for exchange or for new replacement part(s).
The buyer is responsible for returning the products at their own expense during warranty. The buyer will be responsible for properly packaging the product(s) and shipping product(s) back to our location.
The warranty is voided if:
• The product(s) is customized in any way other than manual.
• The product(s) is damaged due to natural causes.
• The product(s) is damaged due to an accident.
• The product(s) is vandalized or stolen.
• The product(s) does not get proper or periodic maintenance.
• The product(s) is used in a manner which it was not intended for.
• The product(s) is modified
Only parts will be covered under the manufactures defect warranty. It is the responsibility of the customer to determine which part is defective. Customer is responsible for repairs or installation of new exchange parts. Only defective parts will be exchanged.
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