Originally Posted by Benesesso
One other factor against the 250/500 bikes. Suppose she's out riding and some squid/pirate/clown/other scuzy starts giving her a hard time. I'd want my daughter on something that can outrun some of the junk out there.
Skill will do that, not a faster bike. All a faster bike will do to an inexperienced rider is hurt/kill then at a higher velocity. The last track day I did (its been a few years) I saw a Ninja 250 consistently run faster times than some of the 600cc bikes and a 1000cc bike.
To go fast on a bike the equation is: