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Originally Posted by xcel
Hi AndyTieDye:
___Most passenger tires you can purchase today have max sidewall of just 44 #’s. Is it safe to go > 44 #’s? How many hundreds of thousands or millions of miles of travel would you need to see before you consider 50 #’s safe? 44 - 50 #’s is for more advanced Hypermiler’s and probably not for you just yet. As mentioned earlier, burst pressures are in the 125 + # range in most cases and I have yet to hear of a blow out do to over inflation at just 50 #’s from Insighter’s with > 100,000 miles on their 30,000 mile rated Bridgestone RE92’s 
___I have the Continental ContiTrak’s on the Ranger (not the Eco Plus’  ) They have been running 50 #’s for over 2 years now but again, this is my own preference. My use of such pressures does not condone others to follow my lead nor should it be a recommendation for you to do the same.
___Good Luck
___Wayne R. Gerdes
___ Waynegerdes@earthlink.net |
Remember- every published spec has a bult-in safety factor in every field. It would be suicide to give out the real max/mins- too much inaccuracy in day-to-day life to be able to reliably stay on the right side of the limit. So everything gets well-padded.
44# max written on the walls means they will remain intact at 2x or 3x that. Going beyond 44# just implies that you're on your own.