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Wheel Offset Q and Wheel Repair Q

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  • Wheel Offset Q and Wheel Repair Q

    The organization I'm interning with has a Mazda5 minivan in their fleet. They got it used and had to replace the wheels as one was cracked and bent because of it hitting a pothole. From looking at it, the crack doesn't seem to go all the way through, but the bend is pretty bad.

    Is there anyone in the area who could possibly fix it?

    The car actually does have 4 17inch steelies on it now that a repair shop bought and put on. They are 17 by 6.5 like the original, but something makes me think that the offset must be off because when full with people, the inside of the fender rubs against the tire and chews it up. I looked at the offsets on the old wheels and they are 52.5mm. I took the steelies off to check them for markings of an offset and saw no obvious indication of the offset, just a couple of "606"s etched in and a single "708" etched in.

    I'm not sure how offsets work, but if the offset is bigger does that mean the wheel sticks out more? The new wheels definitely have a different offset that causes the tire to rub.

    Is it fair game for me to go the shop and demand that we get new wheels? They were the ones who picked the wheels out and they obviously got ones that make the tires rub and get destroyed. Also to add to my case in accusing them of being negligent in picking the new wheels, they failed to install hub centric rings so the wheels weren't properly centered.

    What do ya'll think?
    emkayIV

  • #2
    The offset is the distance between the centre line of the wheel (cirumfrance orientation) and the mounting face of the wheel.

    So if the mounting face of the wheel protrudes past the centre line it is a negative offset. If it finishes before the centre line, it is a positive offset.

    So youll need to work out what the centre line is. Measure total width (in mm) and divide by two.

    Then measure the distance of the mounting face to the front of the lip of the wheel. If its greater than half of the width measurement then whatever that difference is, is your negative offset.

    If its less than half the width of the wheel measurement then whatever that difference is, is your positive offset.
    -SW|UK-
    Education - Knowledge - Power
    insta: @stinkinrich

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    • #3
      Regardless of offsets etc, they put a wheel/tyre combo on there that doesn't work, if you paid for it go back and let them know. Don't know why you had to ask tbh

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