LOD doesn't seem to have advertised an "armor lite" rear bumper yet. What I see are there signature series bumpers being made out of lighter high strength steel. They advertise a 21% weight savings without any sacrifice in strength. I doubt they could fudge that too much because their rear carriers hold up to a 40 inch tire. A lot of rear carriers stop at 37 inch right? Either way, I'll soon be rolling 37 KM2s and an LOD rear should leave me room for adjustment of my spare to where I need it.