A 111 cc dirt bike will go approximately 40 miles per hour. The exact maximum speed is dependent upon the manufacturer of the dirt bike.
a 110 cc dirt bike goes around 40 or 50 up to 60 or 65 mph
a dirt bike cc is a measurment for cubic centemeters
A 600cc dirt bike may go as fast as 120 or more miles per hour. Dirt bikes are generally geared a little lower than street bikes, so the top end would be a little less.
I have a KDX200 that runs 65-68 mph.
dirt bike i would look for a 200-300 cc street i would look for a 650-700
1000 cc that i know of
dirt bike motor
100cc the bigger the better
They can go from 65 - 75 mph ( Can reach 80, but I wouldnt try to go that fast)
with stock gearing should run 62-70 mph
Suzuki used to make a DR750 BIG, It was a dual sport. but on average it's a 600 or 650 now from most manufacturers.