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:Me Again wrote:
Half the people that post here about good results with Marathons do not even own a 5th! Maybe they are just 5th wheel want to bees! Chris
As stated for the same GVWR the 5er will have lower axle weights than a TT... not sure how that is harder on a set of tires???
Anything useful to add other than banter?
Yes!
5th wheels are much taller and therefore can put more temporary loading on tires.
5th wheels can be jack knifed much sharper putting tires in extreme positions.
3rd 5th wheels are general much heavier.
4th related to 3 above, 5th wheels have much more storage space thus tend to get heavily loaded. Think "snowbird"!
5th many 5th wheel manufacturers are building 5th wheel that max out ST235/80R16E tires, which is our primary complaint.
6th ST tires are cheaply made, carry inflated weight rates that are not realistic for freeway use at max rating.
When a major manufacturer like Keystone derates 7k axles to 6750 to be able is install tires rated to 3420, that leaves 90 lbs of excess capacity. At trailer can easily be out of balance left to right way more than that.
Drive the 300 miles from Palm Springs to Phoenix with 40 MPH wind out of the South all day and see how much extra load and heat build up is on the down wind tires. I have done this several times!
Now tell us about your experience with these issues and conditions!
Chris
