The long awaited Grubee Skyhawk GT5 80cc bicycle engine kits are here! Newly developed with all the latest components available, these engines are the highest quality and highest performing engines on the market today. Often referred to as the "Rolls Royce" of bicycle engine kits, the Grubee name is well known for the quality and workmanship that goes behind each kit. Have you tried the rest? Now try the best!
This kit comes with every thing 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.
5-6 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
Product Dimensions
80cc 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.
Warranty Industry Leading 6 Month Warranty against manufacture defects. We cannot warranty issues caused by user neglect or improper use of engine.
Package includes 1. Grubee SkyHawk GT5 2 Cycle 80cc Engine Kit 2. High Performance Low Profile Carburetor 3. Upgraded Hush Muffler
4. Clutch Cable
5. Drive Chain Idler
6. High Quality Japanese Main Bearings
7. Chain
8. Chain Tension Guide
9. Chain Guard
10. Spark Plug
11. CD Ignition Coil
12. Upgraded Alloy Push Clutch Lever
13. Upgraded Twist Throttle and cable with matching grip
14. Universal Plate for larger frame tube diameters
15. Black Teardrop Gas Tank (2L)
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. High Quality Needle Bearings on Both Ends Crank
25. 44 Tooth Chrome Sprocket with 9 Holes
26. Magneto
27. Kill Switch
28. Bonus:
29. Bonus:
30. Bonus: Extra Spark Plug Included in Tool Kit
31. All the needed mounting brackets, gaskets, and hardware
32. Complete easy to follow installation instructions
Fits Most 26" Wheel Bikes (Mountain, Cruiser, Chopper, Road) with V-frame.
Due to Regulations no California Residence Buyers. California Residence Please Check California Air Resource Board
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.
Disclosure of accurate engine size: While we have chosen to use the long standing factory branding engine size of "80cc", the true displacement of the bicycle engine is 66cc. Down through the years China bicycle engine manufactures have advertised their biggest engine as 80cc, therefore we have listed them in the same way on our website. However, the bore and stroke of an 80cc being 47x38mm equals 66cc. Therefore the true displacement of the 80cc bike motor is 66cc. In the west, the volume of a cylinder is calculated by using the formula Volume = Pi x Radius Squared x Stroke. However,in the east the displacement of an engine includes the area of the cylinder head's combustion chamber as well as the volume of the cylinder. As such, there lies a discrepancy between measuring standards by the manufactures in China with those in the United States. As such, all "80cc" engine kits on the market today are actually 66cc in displacement size if measuring by US standards.
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