[Autox] Current R compound choices

Alan Dahl alandahl at mac.com
Thu Dec 17 12:36:50 MST 2009


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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