I have a Z650 and had a Duke390 . The Duke is heaps more fun and way better.The stock Z tires are outright dangerous in the rain and the suspensions are soft and comfortable which are not suitable for cornering. . I have it for about 1 year now and I am looking to trade it in. To be honest, I would rather get the Benelli 600i since that has 4 cylinders and adjustable shocks. The Z forks are not inverted and non adjustable. I would advise getting a used duke690 or if you have the cash go for the 790. I am not from India so I don't know the prices there but around the price of the Z you could check out the Yamaha MT-07 the only reason I didn't get it was because the MT-07 didn't have abs the year I was getting the Z and I feel that ABS is a must for me. The Z feels very cheap in the feel of the dash (no average speed of trip like the duke) it looks good but I prefer the Yamaha. It's brighter and cleaner. The Z dash is often too dim in the sun. By no means I am bashing the Z. It's a good bike. It's dependable and good on fuel but it feels like a sedan instead of a sports car if you want to make a comparison with cars. I had no problems with the z so far except I lowsided the day I picked it up because I was hitting a corner that I hit everyday on the duke the same way with new tires and wasn't used to the springy soft suspensions. Just a side note the Z also has no immoblizer so it can be easily stolen. I had to replace a key after I lost it and the shop I normally go to told me to go to Kawasaki for key programming but it turns out all Thailand assembled Kawasakis don't have immoblizers.

I am riding bikes for 2years in Agra. Than I sell my bike in last month. its a good bike