My truck got dyno'd with my old 285/75-16 BFG AT's...I remember the guys saying that it was at about 150 mph. I thought the rear tires were gonna blow....they got so distorted and rippled looking that it was scary (like a top fueler as Krambo mentioned). I rode fine afterwards though...

 

That's just freaky. I know that there is a safety margin in the speed ratings, but watching those big *** tires distort like that would freak me out.

 

depending on the dyno operator he may not go for a 3rd gear pull with that tall of a tire. like bud on my stocker 255/70/16 and 3.42's i was hitting 152mph at ~5700. wanna see scary waves on tires check out some of parish's dyno videos...