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40 offset???what does this mean

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Old 02-08-2005, 07:18 PM
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Default 40 offset???what does this mean

I am currently looking at buying a set of rota grids and the guy said they are 40 offset...now I've seen wheels for a civic that are 43, 40, 42.. my question is what do these numbers mean and if you may know will the 40 offset fit a 4 lug 99 civic ex. thanks
Old 02-08-2005, 07:21 PM
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Default Re: 40 offset???what does this mean (Slow_CvC99)

it is how far the outer lip (where the tire meets the rim) sticks out past the center of the rim (area by lug nuts)

there are a few of these posts so search
Old 02-08-2005, 07:27 PM
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Default Re: 40 offset???what does this mean (Slow_CvC99)

i tried the search i got a lot of people asking the offsets and if they will fit FWD and RWD cars...but as one said 40 should be ok i guess i will just go with it but i did want to know what it was...i kinda understand what u mean thanks
Old 02-08-2005, 07:32 PM
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Default Re: 40 offset???what does this mean (civictildeath)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civictildeath &raquo;</TD></TR><TR><TD CLASS="quote">it is how far the outer lip (where the tire meets the rim) sticks out past the center of the rim (area by lug nuts)

there are a few of these posts so search</TD></TR></TABLE>

the amount of lip is rim specific, offset has something to do with it but on alot of wheels a smaller or larger offset will not affect lip.
this is a good friend of mine's car. his rear wheel is a 17x9 and around a +12 offset (i could be wrong on these numbers)

as you can see there is virturally no lip to speak of, thats because of the rim design.

offset is a measurment of how far away from center the hub is.

0 offset means it is directly in the middle of the wheel. +32 means its 32mm away from the centerline of the wheel. etc etc.

here
http://www.discounttire.com/dt...s.jsp
Old 02-08-2005, 07:35 PM
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Default Re: 40 offset???what does this mean (Kamin)

i stand corrected

*calls ******* that told me this incorrect info to bitch while he is sleeping

i apologize on me
Old 02-08-2005, 07:43 PM
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Default Re: 40 offset???what does this mean (civictildeath)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civictildeath &raquo;</TD></TR><TR><TD CLASS="quote">i stand corrected

*calls ******* that told me this incorrect info to bitch while he is sleeping

i apologize on me</TD></TR></TABLE>
no worries
its a realy common misconception.
Old 02-08-2005, 08:03 PM
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Default

Offset is how far the hub mounting point of the wheel is from the center of the wheel.

For example, assuming the width of the wheel is the same, a +25mm offset on a Honda would make the wheel stick out past the fender line, and just look plain stupid.

On the contrast, if the offset was +60mm, the wheel would tuckand most likely rub the fenderliner and would almost be impossible to make a full turn.

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