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Crawl Speed and Tyre Size

Michael H.

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Looking at the Crawl Ratio diagram from the leaked Pocket Guide, I noticed the diameter figure used in the calculation of crawl speed is 778mm.

I'm no expert in tyre sizes, but I thought that the diameter of both the Bridgestones and the BFGs in 17” would be over 800mm.

Thoughts / Clarifications ?

26C29718-DC67-41A8-BD89-E6FB18B1B6B7.jpeg
 

Krabby

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Interesting. The brochure lists tire size as 265/70/17 which is about 804mm in diameter. I wonder if they’re accounting for low tire pressure?
 

AZGrenadier

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That seems about right. With a little tire deformation the stock size is probably about 30.6inches which works out to be the 778.
 
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