Polini's big bore 72cc Contessa cylinder kit for the Honda Dio, Elite, and Kymco ZX is the ideal starter big bore kit for riders looking to get significant gain without excess tuning time.

Specifications:

• Polini aluminum piston: 47mm
• Polini piston rings: 47mm
• Polini wrist pin with circlips
• Polini cast-iron cylinder 
• Length stud to stud: 48mm
• Length stud to stud (diagonal): 68mm

Compatibility:

NOTE: It's important to properly break in your big bore kit for 200-300 miles before running your bike full throttle for any extended length of time. We also recommend adding one ounce of 2-stroke oil to your gas tank; 50cc oil injectors are not meant to lubricate 72cc bores. 

About Polini:  For over 50 years, Polini has stood unparalleled in the racing and tuning scene.  Polini has powered both off-road and road racing legends to multiple MXGP and MotoGP world championships including the legendary Valentino Rossi.  Polini sets the standard for high-end tuning and top-quality performance components.

Made in Italy.

This product is intended for off-road use only.

This product is not intended for use on public roads or land.

This product is not legal for use in California on pollution-controlled vehicles. Check local laws before installing.

*Performance upgrades are considered racing parts and are not covered by warranty.