Wanting to change from STs to LTs..........
We are the proud new owners of a 2007 K-Z Sportsman 5th wheel. The unit is in EXCELLENT shape for its age. This is our first (but likely won't be our last). I have read numerous posts on the argu...
Forum Discussion
ah64id wrote:
Goodyear allows the Marathon ST tires to run 10psi over the chart or sidewall pressure, which increases the speed rating from 65 to 75.
I am on my 2nd TT and they have been on both, lots of miles and rough road miles. I haven't had any issues I can blame the tires for, just 2 flats from rock punctures on some nasty forest service roads.
I will need new tires next year and will go back to the 225/75R15 Marathon in LRD, I max them out at around 80% of their load rating.
Got to watch your wheels. This thread has a link to the document.
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/27174748/gotomsg/27191698.cfm#27191698
Many ST235/80R16E are mounted on wheels rated to only 80 lbs, therefore you can not increase inflation to 90.
The whole premise of this flies in the face of the fact that they fail way to often at 65 mph and below already.
Chris
