Five year old article on the "15 inch tire problem"

Do we dare temp the world of bias ply? Supposedly, Hoosier Street TDs are a bit more forgiving than the stereotypical bias ply tire and at least they’re a performance compound. Still, it seems wrong.

Tire, Hoosier, Racing, 275-60-15, Street TD, bias ply, 27.6'' dia.

Tire, Hoosier, Racing, 225-60-15, Street TD, bias ply, 25.8'' dia.
“NOT INTENDED FOR HIGHWAY USE” ?!