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Tyre size?

  • Smoggy
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27 Feb 2011 11:30 #12254 by Smoggy
Replied by Smoggy on topic Re: Tyre size?
more confused now monkey - just typed into a calculator on the net - increase wheel size from 5'' to 7'' wide and offset to negative 15 and it seems to suggest increasing the negative offset increases the wheel to strut clearances so i would have thought the opposite would be true.

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  • Monkey
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27 Feb 2011 11:49 - 27 Feb 2011 11:50 #12255 by Monkey
Replied by Monkey on topic Re: Tyre size?

When considering new wheels, offset can make or break a decision. Using a rim with less offset can cause the tire/rim to rub the outer fender and using a rim with more offset can cause the tire/rim to rub the inner fender or even suspension components. As an example, consider the image to the left.

In the example, the factory rim utilizes a +45mm offset (the hub is +45mm from the center of the wheel) and the rim is centered within the wheel well.

Should new rims with a +30mm offset be utilized (the hub is +30mm from the center of the wheel), the edge of the rim is shifted further outbound by 15mm and closer to the fender lip. In some situations, this could cause the tire to rub the fender lip and in extreme cases can cause damage to the tire or fender itself.When utilizing a lowered suspension, there may be a greater chance of this issue.

That should help for more info go here.

www.nicoclub.com/archives/wheel-tech.html

That should explain it pretty well.
Last edit: 27 Feb 2011 11:50 by Monkey.

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  • Keefe
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27 Feb 2011 12:13 #12257 by Keefe
Replied by Keefe on topic Re: Tyre size?
Don't qoute me on this as it's just what I was told when I bought the Jim.

Mine has the Rhino Rays bigger offset steel wheels fitted with 205/75R15 Recip Trail MT's. No wheel spacers are fitted.
So has more ngative offset, so the tyres should stick out from the hubs more.
Yes, mine do. The tyres are just and I mean just, proud of the bodywork. If I had 215's on, they would need arch extensions on to keep the fuzz happy.
See, not very good, pictures of mine.

Attachment B3s0quBmkKGrHqZioEqsNQuHNBMnNLC490w_31_2011-02-27.jpg not found



Attachment B3s0ufwEWkKGrHqNi8EsHINiT8BMnNLM6Osg_31.jpg not found



K :)
Attachments:

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  • Monkey
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27 Feb 2011 12:24 #12258 by Monkey
Replied by Monkey on topic Re: Tyre size?

monkey wrote:

[IMG


As you can see my neg13 offset wheels stick out with 235's by about 15mm from the side wall to the edge of the guard but it is legally because the main tread dose not go past the guard.

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  • Smoggy
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27 Feb 2011 15:20 #12262 by Smoggy
Replied by Smoggy on topic Re: Tyre size?
thanks monkey that site is very helpful - saved it to my favourites!

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  • biggaz
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27 Feb 2011 17:39 #12279 by biggaz
Replied by biggaz on topic Re: Tyre size?
lol just remember the lower the number the more they stick out of the arch, go too high and you can foul the inner wings etc.

Im not sure if i will change my setup until i have a rocklobster, i need some help in the gearing department if i go bigger i think.

if a cheap set of 16's came along though id go for them but maybe have 2 sets of wheels until i was happy with on/offroad performance of the new ones.

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