The Kawasaki Z650 will be replacing the ER-6N, the Kawasaki Z650 looks almost identical to the current Z800. Sharing the new 2017 Ninja 650 engine, it also gets the new slipper clutch as well as the centrally mounted rear shock.
Tipping the scales at 185 kilograms, it will be a nimbler handler and the 790mm seat height will be more compatible with shorter riders.
More about the new 2017 Kawasaki Z650 here The 2017 Kawasaki Z650 - The New Naked-Bike from Kawasaki.
Also a good point to remember the for 2017 new Kawasaki Z650 cost 283,000 THB, while the 2016 Kawasaki ER-6N has a price tag of 278,000 THB. With only 5,000 THB difference I would seriously go for the new 2017 Kawasaki Z650.
The riding of the 2017 Kawasaki Z650 is so much better than the ER-6N. If you not in a hurry I would keep my eyes on Kawasaki as I expect they will soon launch a more competitive sales promotion to sale the outgoing ER-6N's and Ninja 650 models.
If I was in for a parallel-twin 650cc naked-bike, I would probably try to buy a secondhand Kawasaki ER-6n from 2015 or 2016, they will loose value quickly now that Kawasaki has replaced the model with a complete new bike....
The new Kawasaki Z650 is superior to the ER-6n in every way, I only read that the top-speed of the Z650 is sightly lower. But most not buy a naked bike to ride at top speed anyway.
What should I buy? I'm thinking of a Kawasaki ER6n or a Z650.