Can you still get the Hoosier Tri-Trac for the rear directly from them? particularly the size that equals an 18" tire on a 10" rim? what about a straight groove front tire for a 10" rim like they used to run on the front of the three wheelers?
You should be able to switch that Honda over to a 10" rim no problem with some help from ITP or Douglas.
1986 Tecate
1984 Tecate
1985 Tri-Z
1986 ATC350X
1985 ATC250R (2)
1985 ATC125M (2)
1982 ATC70 - Original Owner
175 TriMoto Frame with Pro-Tec Rear Suspension
3-Wheelin' since '82