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Old Nov 10, 2010 | 04:04 AM
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Default rim size question

how would a 15x12 with a 6" backspace and -13mm offset work on our fbodies?

rubbing issues?
sticking out too far?
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Old Nov 10, 2010 | 07:47 AM
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I'm not positive but that wheel would stick out at least a couple inches.
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Old Nov 10, 2010 | 08:58 AM
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You would need about a 3.5" backspacing for a rim that wide. A 10" wide rim uses a 5.5" so that rim will stick out pretty far
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Old Nov 10, 2010 | 10:10 AM
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bigj the smaller the backspace number the farther the wheels go to the outside of the car. A 3.5" backspace would move the wheel/tire outside 2.5" compared to a 6" backspace. to tuck the wheel inside the backspace number needs to get larger not smaller. A 6" backspace on a 12" rim would have 6" of wheel to the outside, would definately stick out.
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Old Nov 11, 2010 | 11:54 AM
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is this just cause the rim is 12" wide?

in order to tuck it in i would need like 8" bs then?
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Old Nov 12, 2010 | 11:07 PM
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From my measurements even at 8.5" backspace it would still stick out and 9.5 is a lot closer to optimal. Then you would still likely have to have minitubs and offset lca's.
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Old Nov 13, 2010 | 01:00 PM
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Originally Posted by jjordan
bigj the smaller the backspace number the farther the wheels go to the outside of the car. A 3.5" backspace would move the wheel/tire outside 2.5" compared to a 6" backspace. to tuck the wheel inside the backspace number needs to get larger not smaller. A 6" backspace on a 12" rim would have 6" of wheel to the outside, would definately stick out.
Yeah you're right I was thinking about something else
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Old Nov 14, 2010 | 03:32 AM
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ok thanx guys!
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