The article linked below is not specific to motorcycling but to roads in general. There are eight roads listed. Just thought I'd post it if you might be interested.
These 8 great roads are our pathways to freedomBelle Isle (Detroit, Michigan)
Highway 36 (Missouri & Kansas)
Pigsah Highway (North Carolina)
Yerba Buena Road (California)
“Hocking Ring” (Ohio)
State Highway 97 (Idaho)
Highway 27 to Highway 14 North (Arkansas)
BC-99 (British Columbia, Canada)
https://www.hagerty.com/media/driving/these-8-great-roads-are-our-pathways-to-freedom/
