Hi there....I want opinion about my next bike upgrade....I have been riding a Ninja 250R for around 2 summer now and I am planning to upgrade my bike. My question is if I should go with some 400 cc ones or should I directly jump to 600 cc class. To tell ya I am really confused...I love my ninja 250R but, its good and all, but it just doesn't give the kick anymore. My ultimate aim is to get to the Litre class sports bikes. waiting for suggestions 