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Thread: Metric equivilent to 33-12.5-16 tire size

  1. #1
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    Metric equivilent to 33-12.5-16 tire size

    I'm looking for something close to a 33-12.5 in a 16" wheel size.
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  2. #2
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    There's a miata tire calculator buried in a thread somewhere around here. Here's the direct link

    http://www.miata.net/garage/tirecalc.html

  3. #3
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    That helps with the diameter and circumference to figure out speedo error but I'm looking for something else.
    I want to find out if there is a size tire made that is close to a 33-12.5 in a 16"

    For instance, a 305-70-16 is the right height but only 9" wide.
    A 305-60-16 might be close but doesn't exist.
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  4. #4
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    Quote Originally Posted by Roxtar View Post
    That helps with the diameter and circumference to figure out speedo error but I'm looking for something else.
    I want to find out if there is a size tire made that is close to a 33-12.5 in a 16"

    For instance, a 305-70-16 is the right height but only 9" wide.
    A 305-60-16 might be close but doesn't exist.
    The first number in a tire size is the width in mm. Thus a 305 = 12 inches
    (305/25.4=12.01)
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  5. #5
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    Quote Originally Posted by Rocky112540 View Post
    The first number in a tire size is the width in mm. Thus a 305 = 12 inches
    (305/25.4=12.01)
    So that must be what they call the section width(where it bulges out) because tire rack lists the tread width as 9.5" on this size.
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  6. #6
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    There really is no metric equivalent for a 33x12.50 tire the closest you will get is 32.4 inches for a 305-70-16 and 34.6 inches for a 325-75-16 that being said most 33 inch tires do not measure 33 inches most come in around 32.5.good luck
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  7. #7
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    Quote Originally Posted by SterlingRovers View Post
    There really is no metric equivalent for a 33x12.50 tire the closest you will get is 32.4 inches for a 305-70-16 and 34.6 inches for a 325-75-16 that being said most 33 inch tires do not measure 33 inches most come in around 32.5.good luck
    32.4" would be fine. It's the width I'm unhappy with.
    I'm wanting a wider tire than the 9.5" you get with the 305-70.
    Apparently, manufacturers think if you have 16" rims you must want skinny tires.
    Bringing levels of internet suckage previously deemed unobtainable.

    Democracy is two wolves and a lamb voting on what to have for lunch.
    Liberty is a well armed lamb contesting the vote.


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