top speed of 250cc motorbike about 100 mph
its the size of the engine in the motorbike.
In Irelnad, and in the new year ( 2013 ) you must be 18 to be able to ride a 250cc motorbike, and must do (IBT) modules 1,3,5 on a A2 type motorbike and then take a practical driving test. If you already have your A1 liences you just have to do module 5 on a A2 type motorbike.
16 for a 50cc, 17 for a 125cc - 250cc, 21 for any cc
Kawasaki is the best 50cc motorbike.
Honda cb250 Two Fifty (used for £999) (insurance £163 yearly for 18 year old)
16+ 50cc and under. 17+ 125cc. 21+ for a full sized Motor bike with or without a side car. i would say 250cc is 21+ maybe 18+
mp3 250
Yamaha r1
pulser
For really old 250's you might be lucky to reach 20mph whereas the 250 stroker giant-killers in the eighties could break 100mph.
a 250cc