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Old 12-14-2009, 12:32 PM   #16 (permalink)
jamesqf
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Quote:
Originally Posted by shovel View Post
Possibly not relevant to on-road discussions, but with regards to off-highway driving on extremely rough surfaces anyone who says inflation pressure doesn't affect grip can stop talking immediately if not sooner.
But there it's a different mechanism at work. You're generally driving on something that's fairly loose - think dirt spinning out from under the tire - so a larger contact patch reduces the force on each unit area of the dirt.
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