Dude i've been doing a little research on this for myself as i just dont care for spoke wheels and here what i've come up with but it sounds as though you've got the same wheel set up as i do so here goes if you have a 19" front wheel with a single disc brake you may be able to use the comstar offered on the 77-78 750a,cb400 a&F, and the 450 nighthawk as far as your rear wheel goes if its 18" check out the comstars on the 80 cb400 as far as the hub changes go i haven't gotten that far into the research yet
peace
J