Professionally Ported ZEDA80 or GT5 Cylinder + Piston

Original price was: $175.00.Current price is: $149.99.

Out of stock

Fully Ported Cylinder Piston for GT5 2-Stroke Motorized Bicycle and lots of EXTRAS!

Out of stock


This professionally ported top-end replacement for your ZEDA80 or GT5 2-cycle bicycle engine will add instant horsepower to your ride. These cylinders have huge transfer ports – these feed the fuel into the combustion chamber so bigger = better! Also, the deck height is lowered for more compression, and the transfer ports are reshaped and directed towards the intake for more efficiency.

You also get a bunch of other goodies with this package. 5 extra head and base gaskets in total allow you to set your port timing how you prefer. It also allows you to run any type of head – from stock to our BMW 6.0cc high comp head.

*note: lead time can be up to 5 business days on this item, depending on work load.

This package includes:

  • Ported Cylinder
  • Modified Piston
  • 2 piston rings
  • Needle Bearing Wrist Pin
  • 2 Cir-clips
  • 2 base gaskets
  • 1 Aluminum Head Gasket
  • 2 Copper Head Gasket (.4mm .6mm)
  • Short-Shot CNC Intake (40mm)
  • Port-Matched Intake Exhaust Gaskets
  • Stainless Steel Allen-Head Exhaust Screws

This top-end kit will only work on a ZEDA’s and GT5 type engines. These engines will have a con rod from the crank that has one of the following markings: ZEDA80 – ZL 40MM – ZAE60 – ZAE80 – ZAF80 – FM80.

Additional information

Weight 1 lbs


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