because if u are acutally using all of that power and she is a new rider (i am guessing since she is looking at a 250) then she will probably die trying to keep up with a litre bike anyhow. A new 600 will have ample power trust me but a 250 will have a hard time "keeping up" with anything because you cant simply look at cc's you need to realize the power output of the high performance motors of a sportbike vs not. My 600 would destroy any 1200cc cruiser or Harley type bike. If she has riden before I would deffinatlly look at 2 600's
