helio bikes

Upgraded 66cc/80cc 2 stroke bicycle kit

Sale price Price $150.00 Regular price $189.99

Complete DIY 2 stroke 80cc kit

THIS Upgraded 66cc/80cc 2 STROKE BIYCLE MOTOR KIT LOOKS SIMILAR TO OTHERS THAT ARE SELLING ON OTHER WEBSITES.  BUT THIS IS A NEW GENERATION 2016 MODEL  2 CYCLE ENGINE KIT WITH MANY IMPROVEMENTS AND ENHANCEMENTS WHICH MAKE IT STRONGER, MORE POWERFUL AND MORE DURABLE.

SO WHATS THE DIFFERENCE?

THE MOST IMPORTANT PART OF ANY ENGINE IS THE CRANKSHAFT!

Our competitor's engine has a unbalanced, 3 piece crank  with open, unsealed bearings and bolted on weights.

Our crank shown on the right is a one piece, factory balanced 40mm crank with sealed japan bearings.

So, what's the difference?

The 3 piece crank starts to vibrate unbearably at 20mph, to a point where your hands hurt from the punishment of having to hold on to your  handlebars.

Our one piece cranks, however, maintain low vibration at screaming fast speeds!

 

 

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.

New for this kit: 

 One-Piece Crank 

SPEED CARB 

4 bolt chain tensioner 

Upgraded Hardware 

41T Sprocket (FASTER) 

Motorcycle Style Throttle Cable 

Slant Head- More Clearence and Higher Compression! 

 PACKAGE INCLUDES

  • 1. Silver Motor 80cc 2-Stroke
  • 2. Speed Carburetor
  • 3. Upgraded Hush Muffler

  • 4. Clutch Cable

  • 5. Drive Chain Idler

  • 6. High Quality Sealed 202 Japanese Main Bearings

  • 7. 410 Bike 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 Grip
  • 14. U Bolt Bracket for Larger Frames

  • 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. 41 Tooth Chrome Sprocket with 9 Holes

  • 26. Magneto

  • 27. Kill Switch

  • 28. Complete Easy to Follow Installation Instructions online

  • 29. GRADE 8 Engine Hardware
  • 30.40mm intake cylinder head

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.

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.