Convert this for me...Offset = Backspacing

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Apr 1, 2006 | 06:42 PM

sirshan

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Joined: Aug 2004

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From: Cali

Convert this for me...Offset = Backspacing

I just bought some wheels 20x8.5 +35 Offset.

What is the +35 Offset converted to in Backspacing lingo?

Apr 1, 2006 | 07:28 PM

JerryM

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Joined: Mar 2006

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From: MI

I'm pretty sure this is correct.
8.5" / 2 = 4.25"
35mm * 25.4 = 1.4"
4.25" + 1.4" = 5.64"
So it's roughly a 5.64" backspacing
See this site for more info: http://www.rsracing.com/tech-wheel.html

-Jerry

Apr 1, 2006 | 08:32 PM

Dog'em

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Joined: Dec 2005

Posts: 1,594

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From: Nebraska

The chart that I used shows the backspace at 155mm or 6.1 inches for a
20 X 8.5 rim with +35 offset.

Apr 1, 2006 | 09:25 PM

Brian 5.4

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Joined: May 2005

Posts: 599

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From: Fort Worth, TX

Its just over 6" backspacing. An 8.5" wide wheel with +32 offset is 6" backspacing, so yours will be just a few mm more than that.

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