As far as I know the stock CRF 70 wheels will bolt on the CRF/XR 80 and 100. They can be had off ebay reasonable.
Is it posabable that the after market cyclone or dirt wheels with disc for the crf 70 will work? Disc brake wheels will need bracket fabactions for the disc brake calbers.
This opition offered over seas from Takawaga for the Honda Ape fork legs and Kitaco set up for the solid Ape wheels. The also have several swing arms aviable for disc. Not on the cheap. Or even if avialble to the U.S.?
Of course The solid wheel hub won't be of use. However, it brings food for thought for a caibler bracket useing the stock fork leg drum stop. If ! Their is enuff room to play with?
Hear is a trick CRF Supermoto I stumbled accross surfing the sites over sea's
Wealth of part over thier for sure....
Good luck!