48cc Mega Motors Bicycle Engine Kit- 2 Stroke

Mega MotorsSKU: FH-MEK48

FREE SHIPPING to Continental US
FREE 6-Month Warranty

Color: Silver
Sale price$189.95


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.

The Mega Motors Silver 48cc bicycle engine kit is the smaller form of our best selling Mega Motors engine. This kit comes with everything that you'll need to convert a bicycle into a motorized bike. You will still be able to pedal the bike and ride like normal or start the engine by releasing the clutch lever. There's no rope pulling needed. You can stop or start the engine as you ride. Don't be fooled by other retailers, selling outdated, old generation engines! All of our engines feature the latest updates. We make certain that all of our manufacturers 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!

** Please note: Sprocket Clamp Assemblies included with Mega Motors 2-Stroke 48cc and 66/80cc bike engine kits come with only 1x set of metal plates. Older production of these assemblies included 2x sets, but from testing and redesigning, existing engine kits and engine kits in the future will only require 1x set. This redesigned assembly helps secure your rear wheel sprocket better than in previous productions.

With these strict quality assurance measures, we are able to offer an industry leading 6 month warranty!

1.95 - 2.2 HP (horse power)

20-25 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

Product Dimensions

48cc engine kit is about 8.5" height 7" length 5" 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.


Product Requirements

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.

CNS Carburetor upgrades will require extra material to fit flush around the manifold. This can be remedied by wrapping the manifold with electric tape or using PVC to fill in the gap between the carburetor port and the manifold.

Complete Digital Installation Guide

Each Mega Motors bicycle engine kit comes with an easy-to-follow installation guide that takes you step by step through installing, adjusting, and fueling your brand new engine kit for the ride of your life.



Industry Leading 6 Month Warranty against manufacture defects. We cannot warranty issues caused by user neglect or improper use of engine.


Package Includes *(Products pictured may come in different colors but does not hinder performance.)

1. 2011 Flying Horse Silver 48cc 2-Stroke Engine

2. Low Profile Carburetor

3. Upgraded Hush Muffler (Color may vary depending on availability)

4. Clutch Cable

5. Drive Chain Idler

6. High Quality Main Bearings

7. 415 Bike Chain

8. Upgraded Chain Tension Guide with Bearing Wheel

9. Chain Guard

10. Spark Plug

11. CD Ignition Coil

12. Upgraded Alloy Push Clutch Lever (Extended Leverage)

13. Upgraded Twist Throttle and cable with matching grip

14. Bonus:

15. Black Teardrop Gas Tank (1.5L)

16. Fuel Line

17. Throttle Cable

18. Clutch Cable

19. Gasoline Tank Switch

20. Sprocket Clamp Assembly

21. Sprocket Clamp Bolts

22. Large Spring (Heat Shield Spring)

23. Extension Spring (Recoil Spring)

24. 44 Tooth Chrome Sprocket with 9 Holes

25. Magneto

26. Kill Switch

27. Bonus: Spark Plug Removal Tool

28. All the Needed Mounting Brackets, Gaskets, and Hardware

29. Complete Online Installation Guide

30. Bonus: Standard Universal Mounting Bracket

Fits Most 26" Wheel Bikes (Mountain, Cruiser, Chopper, Road) with V-frame.

Disclaimer: Operating this motorized bicycle and bicycle engine kit involved some risk of serious bodily injury. Buyer accepts responsibility for any and all vehicle operation 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. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and not for on/off public roads.

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Customer Reviews

Based on 15 reviews
Rob Thomas
Grandson Loves It

My grandson assembled and mounted it to his bike all by himself. No help from anyone. Very happy with it.

Catherine Wilcox

Fired right up first try and has been running great!

Albert Markert

This was a great and simple father and son project. The joy on his face when it was ready to ride off was priceless. No issues with installation and from what I see quality parts! Even dad enjoys taking off for a spin in the motorized bike. Thank you Bikeberry!

George Williams


craig Letain

works quite well, besides the incontinent fuel filter on both kits I bought, and lack of instruction manual.

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