What is the Backspacing of Trailer Tire and Wheel Combo AM3H325

Question:

On the in-board side of this wheel, what is the dimension from the hub surface to a straight edge laying across the steel wheel lip? Then, since the tire sidewall probably bulges beyond that, what is the dimension from the hub surface to a straight edge laid across the in-board tire side wall?

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Helpful Expert Reply:

The overall width of the wheel in tire and wheel combo # AM3H325 is 8 inches. The inner width where the tire sits is actually 7 inches. Since this wheel has a zero offset the backspacing is going to be 4 inches. The tire width is 8-7/8 inches overall making half of that 4.43 inches or 4-7/16. I made a video for you as well explaining these measurements.

helpful expert reply by:
1
Michael H

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