Hi, i have been riding a Pulsar 200NS since 2014 now and last three years with my wife as pillion. I am planning to move to a bigger engine now (though have no prior experience with larger engines) I have been eyeing at z650 for some time now and i could go with it with it in next three months if everything fits in.

but before I take this big decision, I wanted to get a feedback from others who have done such a transition themselves whether I should really make the jump based on my driving style described below.

I like riding but haven't done trips longer than 400 km at a stretch, my bike itself hasn't crossed 30k even as of today, and with last two years, I could only ride for ~1k km.
I am not a person who customises their ride as such and really keep it stock all the way, apart from some basics like better engine oil, tyres etc eventually.
I use my bike for mostly commute and go on long trips on monthly basis, and love opening the throttle every now and then even on my daily commute. My current bike is still in excellent condition in terms of smoothness and performance (as you could have guessed based on limited usage and timely maintenance)

should I go for a 650cc bike or perhaps use my current bike longer to add more km to my ride portfolio?