I have spent quite a bit of time considering what type of saddle bags or side cases to mount on the Z650. There didn't seem to be a whole lot of options available on American sites. I happened across the SW-Motech UK site that sells the Blaze Saddlebag System. Twisted Throttle is a US importer for SW-Motech but they did not have options for the Z650 on their site. I took a chance and called them up- pointed out they were on the UK site and they took the information. Three days later they emailed to let me know they had them up and available on their site but it would take 4-6 weeks from Germany to get here. They actually had the bags in stock but not the mounting hardware. I received the bags and should have the mounts before mid Feb. If you are looking for an option for your Z650 check it out. Below is a link to them on Twisted Throttle and a video description of them from Revzilla. Revzilla sells them too but also didn't have an option for the Z650 2017-2019.
https://www.twistedthrottle.com/sw-motech-bags-connection-blaze-h-panniers-set-kawasaki-z-650-16
https://www.twistedthrottle.com/sw-motech-bags-connection-blaze-h-panniers-set-kawasaki-z-650-16
