For really old 250's you might be lucky to reach 20mph whereas the 250 stroker giant-killers in the eighties could break 100mph.
top speed of 250cc motorbike about 100 mph
how fast can a 250cc quad go
how fast does 250cc Orion dirt bike go
9000mph
medium speed
a motorbike has an advantage on the road as you can overtake cars with ease and can go really fast
about 40 mph
90 mph
70
it will go 650 mphs
Probably faster than a 150cc kart
i would say 250cc, im a mechanic