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Issues with moving from 17-18" rims on STi

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Old 23 February 2005, 02:50 PM
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pistonmonkey
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Default Issues with moving from 17-18" rims on STi

I'd be interested in hearing from people who have changed from std 17" rims. Has this damaged the ride?

I have found that with the 18" rims over 50-60mph the ride quality goes rapid downhill and it becomes a bit of a rollercoaster ride. Maybe I am being a whimp, but it never felt this bado druing a test drive with std rims. Anyone else have similar experience ???
Old 23 February 2005, 03:10 PM
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supertouring
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I've got 18s on my 03STi and they are fantastic - corners on rails! Looks much better too.

If you want a soft ride, buy a Mondeo.
Old 23 February 2005, 04:04 PM
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GrollySTI
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I'd like to know this also.

I realise the ride will harsher - but was wondering how much?

supertouring - the roads where I live are extremely poor (read SH*T) - my previous motor had 18" wheels and made me whince.Unfortunately I don't know if that was the suspension or the wheels (or both).

I suppose the only way to know would to go in a scoob with the 18" fitted.

Doh! - looks like I sort of answered my own question!!

I'm gonna go lie down.
Old 23 February 2005, 04:23 PM
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AvalancheS8
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Originally Posted by GrollySTI
I'd like to know this also.

I realise the ride will harsher - but was wondering how much?

supertouring - the roads where I live are extremely poor (read SH*T) - my previous motor had 18" wheels and made me whince.Unfortunately I don't know if that was the suspension or the wheels (or both).

I suppose the only way to know would to go in a scoob with the 18" fitted.

Doh! - looks like I sort of answered my own question!!

I'm gonna go lie down.
If the wheel and tyre combo is heavier than the old 17" ones it will have a negative impact on the ride and handling, it pays to be careful about weight when going to bigger wheels.
Old 24 February 2005, 08:56 AM
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MikeWood
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pistonmonkey

With the right 18" wheel and tyre combination you will find that the assembly may actually be lighter and the ride improves. A P-FF7 with a 225/40ZR18 PZero Nero is significantly lighter than the std STi wheel and tyre assembly and the ride is much better than with a 225/45ZR17 OE Bridgestone.

Mike
Old 24 February 2005, 10:47 AM
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scoobyjohn2000
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i have 18" tyre size 215/35/18 and it feels like i need to wear a kidney belt on long runs.
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