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tyre offset explain

General Tech Talk

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tyre offset explain

Post by boy-c »

hey i just want some one to explain to me how offset is measured like where from and how you would read it if your looking at a rim cataloge
cheers kayl
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Post by MART »

Offset , or do you mean backspace , Cheers Paul.
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Post by HotFourOk »

Offset is the positioning of hub mounting surface in relation to the centreline of the rim.
It can make your track wider or narrower depending on the offset used.
Image

In a catalogue for example, my wheels are 15x8", 0 offset.
For a wider track, I can use a 15x8" rim with -10, -19, -23 and -28mm offset depending on how much further I want the wheel to stick out.

Backspacing is just the distance from the inner edge of the rim, to the hub mounting surface.
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Post by +dj_hansen+ »

HotFourOk wrote:Offset is the positioning of hub mounting surface in relation to the centreline of the rim.
It can make your track wider or narrower depending on the offset used.


In a catalogue for example, my wheels are 15x8", 0 offset.
For a wider track, I can use a 15x8" rim with -10, -19, -23 and -28mm offset depending on how much further I want the wheel to stick out.

Backspacing is just the distance from the inner edge of the rim, to the hub mounting surface.
Im assuming in that diagram, the wheel mounting surface is the LHS of the centre. Otherwise, an excellent diagram to expliain it.
Cheers,
Dan.

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Post by HotFourOk »

+dj_hansen+ wrote:
HotFourOk wrote:Offset is the positioning of hub mounting surface in relation to the centreline of the rim.
It can make your track wider or narrower depending on the offset used.


In a catalogue for example, my wheels are 15x8", 0 offset.
For a wider track, I can use a 15x8" rim with -10, -19, -23 and -28mm offset depending on how much further I want the wheel to stick out.

Backspacing is just the distance from the inner edge of the rim, to the hub mounting surface.
Im assuming in that diagram, the wheel mounting surface is the LHS of the centre. Otherwise, an excellent diagram to expliain it.
Yeah, the back of the mounting surface is where the zero offset line runs.
[quote="RockyF70 - Coming out of the closet"]i'd be rushing out and buying an IFS rocky[/quote]
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Post by krf_bb »

ring dragway they will tell you the best way to measure
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Post by HotFourOk »

krf_bb wrote:ring dragway they will tell you the best way to measure
It is very simple and a best way is just with a rule. No need to call anyone. :roll:

Just shameless plugs....
[quote="RockyF70 - Coming out of the closet"]i'd be rushing out and buying an IFS rocky[/quote]
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