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High speed run problems with 20" rims???

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Old Jul 29, 2009 | 12:18 PM
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Default High speed run problems with 20" rims???
I noticed in a couple posts about how fast you have gone in your GS that some people appear to have limited how fast they took their car because they had 20" rims. Why? What problems do the 20" rim cause?
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Old Jul 29, 2009 | 02:10 PM
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I think the tires on 20's have to be thinner on our cars, and when driving fast, if you hit a pothole, it is very likely you'll damage a rim.
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Old Jul 29, 2009 | 02:40 PM
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usually the bigger the wheel, the more power lost.
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Old Jul 29, 2009 | 03:18 PM
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the heaviier it weighs......... just feels like the car is dragging to me when i had 20s on but 19s just feels about stock to me tho
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Old Jul 29, 2009 | 03:23 PM
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As others have said typically a bigger wheel is heavier which means more unsprung weight. When people buy lighter wheels for their cars they do get some "performance gains" out of them due to less unsprung weight. Imagine putting a 6lb bowling ball on a rope and swinging it around your head vs. a 10lb bowling ball.
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Old Jul 29, 2009 | 05:07 PM
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I haven't had any problems going high speeds when I had my 20s. I've hit 145 without any issues.
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Old Jul 29, 2009 | 05:09 PM
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Originally Posted by GS300ToM
the heaviier it weighs......... just feels like the car is dragging to me when i had 20s on but 19s just feels about stock to me tho
I agree my 20'' DOnz made the car super heavy IMO... 19's seems like a good balance and feels like stock..
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Old Jul 29, 2009 | 05:57 PM
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I hope you guys know there are some 20s that are lighter than 19, 18 and possibly even smaller diameter wheels, so please stop missleading readers with your unproven theories.
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