This kind of depends on the model and manufacturer. For example a Honda CRF 50 will do 40-47 mph. But some cheap 50 cc 2 stroke dirt bikes struggle to pass 20 mph. But most multi-speed 50 cc dirt bikes should go a minimum of 35 mph and a high of 55 mph, depending on how powerful they are, are many gears they have and how they are geared.
40-60mph
Most of them struggle to guet up to 25mph. But the top speed would be 30mph.
around 30-35
a 110 cc dirt bike goes around 40 or 50 up to 60 or 65 mph
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 dirt bike cc is a measurment for cubic centemeters
The size or displacement of the engine, 50cc versus 125cc.
I have a KDX200 that runs 65-68 mph.
a Honda xr650 max out about 180kmp/h
1000 cc that i know of
It depends how the engine is tuned and if there are any extra carborators etc... my Honda crf100f goes 65 MPH, if you got a dirt bike that was meant for motocross it can go faster
honda z 50 cc when he was 4 years old
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)