The BFGs in that size have not been produced in many years. And not much available as a street radial in that size anymore.
To get that size in a nice, non-drag radial tire I would recommend the Mickey Thompson Sportsman S/R. They have several widths in a 26" tall tire. All depends on what rims you have to get a good fitment.
http://www.mickeythompsontires.com/s...em=SportsmanSR