In Germany i use to ride all winter up to about 19999-2000, i liked it.
The bikes i had over the years for around town and winter were smaller and lighter, the FJ600 was a good little all rounder as is the CB Seven Fifty, both use carburetors and are air cooled.
These are little bikes with skinny tires that can be thrown around easily and very easy to ride but with about 75 HP they had enough power to get going if they had to.
Temps down to about 20f and up to 2" of slush were okay. 10w30 oil, they they start right up, just let it warm up a little bit and no problems with the machine only from from the complaining neighbors.
No electric anything but good Held Arctic thermal Goretex gloves, Frey Daytona Goretex boots, Rukka outlast Goretex jacket and pants with Rukka thermal underwear did the job just fine, never cold.
Shoei full face with fog shield on the inside of the visor and Rukka thermal neck and chest piece completed my winter outfit.
You will not ride a HD with leather and a salad bowl helmet and goggles in the winter. LOL