Bobbie
The Hodag camping rules state; “One camping unit (a "camping unit" is defined as anything used to sleep in) and one vehicle permitted per camping permit.”
Which in your case means you attach your camping permit (pass) to your Class C Camper (motor-home) and the Vehicles Pass can be used on any licensed vehicle (car or pick-up) or in your case your street legal motorcycle.

Happy Hodag
Longtime Hodager