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Old 03-18-2010, 05:52 PM   #1
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Default question on rim sizes - 1:10 touring car

Hi all
what are your views on rim sizes?

i found this other day measuring rims and found these speedmin rims have a smaller outer diameter which means more rubber on the outside edge what is the benefit of this?
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question on rim sizes - 1:10 touring car-img_0056.jpg   question on rim sizes - 1:10 touring car-img_0055.jpg  
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Old 03-18-2010, 06:12 PM   #2
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A smaller rim means a higher sidewall so more grip.
The tire can move more before it breaks traction and the car starts to slide.
On the downside you will have less 'feel' for the car because of the higher sidewall, so in fast chicanes the car takes more time to settle and transfer weight from one side of the other.
Another downside is you run a higher risk of overheating the tires and so have massive tire wear.
Because the tire can move more because of the higher sidewall it creates more friction = more heat.
So on a cold low traction track they could work great, but on a hot high traction track a larger rim with a low sidewall works better.
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Old 03-19-2010, 06:06 AM   #3
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Quote:
Originally Posted by mrgsr View Post
Hi all
what are your views on rim sizes?

i found this other day measuring rims and found these speedmin rims have a smaller outer diameter which means more rubber on the outside edge what is the benefit of this?
That thumb looks very familiar, was that photo taken with an Iphone????
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