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Re: [Autox] Current R compound choices

To: Tom Holt <tom@sth2.com>
Subject: Re: [Autox] Current R compound choices
From: Alan Dahl <alandahl@mac.com>
Date: Thu, 17 Dec 2009 11:36:50 -0800
On Dec 17, 2009, at 7:11 AM, Tom Holt wrote:
> So, what am I missing here...
> 
> A 245-45-18 has a diameter of 26.7"
> a 295-30-18 has a diameter of 25"
> 
> How does a smaller diameter tire increase your top speed in second? Did 
> somebody transpose a number?

Hoosier doesn't make a 245/45-18 so I assumed he meant the 245/35-18 A6 which 
is only 24.7" tall vs 25.3" for the 295. I see now however that Hoosier lists a 
245/40-18 with a listed height of 25.7" which is taller than the 295. However 
it's tread width is 9.3" vs 10.8 for the 295 so I'm not sure it would be a 
performance advantage. It would be interesting to hear if anyone's tried them 
and what the results were.

- Alan Dahl

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