dynamic balancer for brake rotor

what gas does a 66cc/80cc Bicycle Engine Kits take?

does it require a Oil mix? or regular Unleaded Fuel? i cant seem to get this answer from their site.

here is the site and maybe someone may know,
http://www.bikeberry.com/black-80cc-moto rized-bicycle-engine-kit-epa-certified.h


The chinese 2-stroke bike motors use pre-mix - gas mixed with 2-stroke oil. Usually they require around 20-1 fuel/oil mix when breaking in (for the first few hundred miles), and 35-1 thereafter.

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