top speed for most 250 usually at around 160-180 only.

what is your daily route? how do you plan to ride it? any experience?

dont go straight to 600cc...yes most people say they can handle it.. but the problem come when you are in emergency..you have no experience how to handle it..then you will blank/blur and it will be a problem..

i`ll be more then happy to assist new bikers make the right choice.. its hurt to see news about new riders getting killed riding their bike..