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  1. KahnQuistador

    Wheel parameters

    The flange measurement is the missing link! That would make Pat's 4.1 inch data correct using my measurements. I'll order the 7 1/2 inch wheels with an offset of 22 mm. Now, if one of our Italian friends would give us the answer to the "campanatura" question... Thanks to all, Bryan
  2. KahnQuistador

    Wheel parameters

    The plot thickens. I measured the distance from the outer edge of the inside of the wheel to where the wheel contacts the hub. It measures exactly 4.625". If the backspace is supposed to be 4.1", I must be measuring from the wrong place. True? I also found campantura related to...
  3. KahnQuistador

    Wheel parameters

    Thanks for the reply. I agree with your supposition about backspacing so I did the math and came up with a backspace of 5.062" being equal to about 34mm offset. The wheel I want to replace has "Alfa Romeo 5 1/2 J x 14" and "campanatura 38" on it. I took the latter to...
  4. KahnQuistador

    Wheel parameters

    Can someone tell me how to convert wheel backspace in inches to wheel offset in millimeters? The guys at the tire shop didn't know. I need for a 7.5 inch wheel width with a backspace measurement of 5.062 inches, what's the proper offset in millimeters?
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