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Old 07-08-2014, 01:26 PM   #1
KathyandDave
Montana Master
 
Join Date: Aug 2008
Location: Shelburne
Posts: 688
M.O.C. #8693
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Frame flex and tire failure?

I met a man who pulls a very expensive SOB and is retired from a farm and construction equipment manufacturer (he could compare notes with Ron Ames). In 2010, he bought a Big Sky and sold it seven months later because he was dissatisfied with its frame stability. He had three blowouts. He told me the following:
Prior to some year, say, a decade ago (not sure exactly), the Montana frames were made by Leyland (check my spelling). They were made of stacked welded square tubing, which resists twisting by virtue of the welds between the tubes. Lippert bought Leyland, then introduced the I-beam frames we have now. The man claims that the I-beams twist every time the springs deflect, so the side walls of the tires take an unbalanced load and distort. In time, they heat up. So, the frame construction contributes to the wear on the tires causing them to fail prematurely. The tire issues may not be entirely due to bad tires.
It's an interesting assertion. Has anybody heard of this?
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