Wheels and tires are unsprung weight (they're in direct contact with the road and not suspended by the vehicles suspension) so you'd think the weight of the wheel/tire combo shouldn't directly affect how much the truck can carry. Perhaps the issue is really about trying to stop a vehicle that now has more mass rolling down the road? Or probably that a lower profile tire may have a lower weight carrying capacity which would reduce the amount of weight the truck is able to carry and not simply based on the fact the particular wheel/tire combo weighs more.
You're right, they're unsprung weight, but they do add to the total vehicle weight. Since payload is the result of subtracting the vehicle weight from GVWR, heavier components, whether unsprung or not, would reduce actual payload capacity. However, unsprung weight would not add additional frame load, so there might be a fudge factor.
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You're right, they're unsprung weight, but they do add to the total vehicle weight. Since payload is the result of subtracting the vehicle weight from GVWR, heavier components, whether unsprung or not, would reduce actual payload capacity. However, unsprung weight would not add additional frame load, so there might be a fudge factor.
Hi: rbryan4... Always need room for "Fudge" specially Makers Mark white chocolate fudge. Thanks to Trees for the recipe. There's still a bit that DW hasn't eaten yet!!! Alf
escape artist N.S. of Lake Erie
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