^I second that. In my opinion the 250R is one of the best options for a stepping stone / introduction to super bikes.

Don't underestimate the Ninja , it's actually really good for the price .*that's what I heard from one of my friend who tests superbikes for Bike India mag*
Straightaway hopping on to a Fireblade or CBR wouldn't be the best thing to do

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@ OP , you need to post more information like , previous history of bikes, any super bikes ,riding experience . what exactly are you looking for etc.