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50mm Performance Big Bore Kit with 69mm Valves
Changes Factory 49cc to a Powerful 80cc Engine
Includes: Cylinder Head, Cylinder, Piston, Pin, Rings, Cir-clips, Oil Pump Gear and Hardware

Cylinder bore 50mm
Cylinder Mounting Holes 70mm
Piston Diameter 50mm

LEGAL DISCLAIMER: Use of these performance products may void warranty and are only intended for use in an off road, non street or closed course, track environment.

Check all local laws pertaining to such vehicle modifications before ordering.

As some performance products will accelerate wear on your vehicle and if incorrectly installed may cause vehicle failures that could lead to serious bodily harm and or death, these parts should only be installed by a certified technician.

*STATE OF CALIFORNIA*: Under the C.A.R.B regulations our products are "Race Only" products and are not legal for use on any pollution controlled motor vehicle.

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