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need help

Discussion in 'Stop, Drop & Roll' started by BIO, Nov 2, 2004.

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    BIO Banned

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    need help

    so hi every 1 i was wondering since i change my stock wheels in my xrs and put the motegi MR7 17 w/kumho 215/45/17 if it is goin to be the speed the same or is there ne difference dunno remember the stock measurments thanx
    BIO, Nov 2, 2004
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    Wheee Guest

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    Tirerack.com has the answer

    Hey Bio,

    Here's what I found out doing some general searching at Tirerack.com:

    The stock XRS supposedly comes with 195/55-16 size tires which will give you around 854 tire revs per mile. Khumo 215/45-17 tires will give you around 838-840 tire revs per mile. Hence, going from stock to the Khumo's will be a 1.87% change in gearing. Your Khumo's will read 1.87% lower mileage and speedo-wise. 65 mph on your speedo with the Khumos will actually be 66.23 mph. Hardly noticeable on an analog speedo. At least, this is what all the math comes out to.
    Wheee, Nov 2, 2004
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    BIO Banned

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    thnx alot so i c it is no too much the diff
    BIO, Nov 2, 2004
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