Quote:
Originally Posted by CaptnJohn
WoW!! I thought my 5er ready to snowbird at just under 14,000# (gvwr 15,200) with Sailun 235/85R16 was overkill at 4400 ~~ not sure what I'd pull to think of 6005# rated. I'm not sure there is enough height in the wheel wells or between tires either.
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When one considers the physical forces on a tire during bumps, potholes, and high speed thrill rides on our wonderful highways then the loading is much different than smooth sailing on flat concrete. Some other genius can do the physics. I agree that 4,400#/tire max load is ~900# margin/tire on most 5r we are looking at (3791RD GVWR 16,945-pin(2,945)=14,000/4=3,500 carried per tire).
Also consider that the S637 Sailun ST235/85R16 is 31.7" OD and the 235/75R17.5 is 31.6"OD, they are essentially the same size. Rim width is only 1/4" difference and and SW only 4/10" difference. Clearance would not be an issue.