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Author Topic: 15X7 FW rim backspacing  (Read 6374 times)

TStone

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15X7 FW rim backspacing
« on: May 01, 2007, 01:00:20 PM »
anyone know what the std backspacing is for and FW code 15x7 ralley rim?
« Last Edit: May 01, 2007, 01:01:58 PM by TStone »
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JohnZ

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Re: 15X7 FW rim backspacing
« Reply #1 on: May 01, 2007, 03:55:59 PM »
It's the same as a "YH" Camaro Z/28 wheel; offset is +0.30".
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TStone

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Re: 15X7 FW rim backspacing
« Reply #2 on: May 01, 2007, 04:50:41 PM »
so using reverse calculation that would put the backspacing btw 4.25 & 4.5"s?
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JohnZ

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Re: 15X7 FW rim backspacing
« Reply #3 on: May 02, 2007, 02:57:46 PM »
With +0.3" offset, backspacing would be 3.8" plus the width of the rim flange from the inside bead seat to the outside edge of the flange.
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