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Author Topic: OFFSETS  (Read 3653 times)

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MikeDundee

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OFFSETS
« on: 24 September 2007, 21:13:55 »
Can someone please explain what offset means please, in relation to rims :-/
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TheBoy

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Re: OFFSETS
« Reply #1 on: 24 September 2007, 21:15:15 »
Quote
Can someone please explain what offset means please, in relation to rims :-/
How far in (or out) the wheel is...
PCD is the diameter of the circle that passes through the bolt holes...
« Last Edit: 24 September 2007, 21:15:51 by TheBoy »
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Dazzler

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Re: OFFSETS
« Reply #2 on: 24 September 2007, 21:16:30 »
I believe its how far in or out the rim sits on the hub, thats why front wheel drive rims will fit an Omega but sit a long way into the wheel arch because it is a different offset to the rear wheel drive set up.
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MikeDundee

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Re: OFFSETS
« Reply #3 on: 24 September 2007, 21:20:11 »
OK folks thanks for that, so given that I have just acquired offset 38's will they just go straight on without any of those spacers thingey's or  that?
« Last Edit: 24 September 2007, 21:21:07 by mickdundee »
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Entwood

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Re: OFFSETS
« Reply #4 on: 24 September 2007, 21:25:48 »
All you'll ever need to know ....   perhaps ...

http://www.carbibles.com/tyre_bible_pg2.html

(page 1 is the same treatment on tyres !)

:)
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MikeDundee

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Re: OFFSETS
« Reply #5 on: 24 September 2007, 21:40:16 »
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All you'll ever need to know ....   perhaps ...

http://www.carbibles.com/tyre_bible_pg2.html

(page 1 is the same treatment on tyres !)

:)

Great stuff, interesting reading, still none the wiser as to whether the offset 38's are OK as irmscher only show offset 30's for the omega :-/
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Danny

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Re: OFFSETS
« Reply #6 on: 24 September 2007, 21:41:50 »
omega will take offsets between 35 and 45
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MikeDundee

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Re: OFFSETS
« Reply #7 on: 24 September 2007, 21:46:41 »
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omega will take offsets between 35 and 45

Thanks for allaying my fears Will-Floyd :-[.......... :y
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MikeDundee

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Re: OFFSETS
« Reply #8 on: 24 September 2007, 21:49:12 »
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Quote
omega will take offsets between 35 and 45

Thanks for allaying my fears Will-Floyd :-[.......... :y


So a tyre at 235/40....is 40 the offset? ::)
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Dazzler

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Re: OFFSETS
« Reply #9 on: 24 September 2007, 21:55:40 »
No, 40 is the profile of the tyre (height)
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Danny

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Re: OFFSETS
« Reply #10 on: 24 September 2007, 21:58:08 »
no, the 235/40 only relates to the tyre

235 being the width in mm? i believe the 40 is the sidewall measurement, given in a percentage figure, of the tyre width?



« Last Edit: 24 September 2007, 22:01:26 by D4NNY »
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Entwood

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Re: OFFSETS
« Reply #11 on: 24 September 2007, 22:01:05 »
Quote
Quote
Quote
omega will take offsets between 35 and 45

Thanks for allaying my fears Will-Floyd :-[.......... :y


So a tyre at 235/40....is 40 the offset? ::)


Tyres don't have offsets .. only wheels do .. :)
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MikeDundee

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Re: OFFSETS
« Reply #12 on: 24 September 2007, 22:05:22 »
Quote
Quote
Quote
Quote
omega will take offsets between 35 and 45

Thanks for allaying my fears Will-Floyd :-[.......... :y


So a tyre at 235/40....is 40 the offset? ::)


Tyres don't have offsets .. only wheels do .. :)

So what size tyre goes on these then? :-/

http://cgi.ebay.co.uk/Irmscher-Sport-Star-18-Alloy-Wheels-Vectra-Astra-Omega_W0QQitemZ260162122203QQihZ016QQcategoryZ9888QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


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Danny

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Re: OFFSETS
« Reply #13 on: 24 September 2007, 22:08:37 »
225/40/18 should be fine

what you got on your current ones?

ask sir miggy what he has on his
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MikeDundee

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Re: OFFSETS
« Reply #14 on: 24 September 2007, 22:17:54 »
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225/40/18 should be fine

what you got on your current ones?

ask sir miggy what he has on his

Thanks again :y......235/40/18 on current rims.....does Sir Miggy have sport stars then?
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