Bro.
My word of advice for you.
Don't take 250cc.
I'm biker myself.
I tried a 250cc and the power its not enough.
Surely in the years you will like upgrading when another bigger cc cuts you or chops you.
Take a 600cc straight.
I would advise you to take the ZX-6r if you're rich or budget wise ER-6N.
Honda CBR250RR is a single cylinder bike. Compared to the Ninja in terms of speed is slower.
Any questions can inquire from me.

This post has been edited by AccelTech: Feb 28 2011, 02:32 PM

if Superbikes tend to break down easily then whats worth in investing on them?
I assume that some of the workshops can easily fix an ER-6N as i have seen before.
Most probably i would keep a toll car/bike number in me just for emergency use.
Normally for trips , its better safe to ride with your bikers than solo alone unless you're confident with your bike that doesn't cause problems.