[triplerotor]

hi im currently ongoing a project on building a 4 wheeler based on a gy6 80cc engine.
im currently finding low resistance bike tyre. can you guys recommend any good tyres with low resistance? 17inch in size
and
the gy6 80cc engine which fairly the same as ruckus engine.
any ideas on how to improve the mpg. im currently ordering carb to efi conversion kit so i can manualy tune it.