Quote:
Originally Posted by ard
I disagree that narrower tires in soft sand is a good idea. Just increases the propensity of the tire to dig down and not float. Ever ride a bicycle in the sand??? Would you rather be on a "road bike" with a 1" tire, or a cruiser with 2.5" tires??
A runflat will increase contact patch, but obviously not as much as a standard tire- once the tire begins to self support I am guessing no more spread.
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My road bike tires run at 125 psi. You can't compare 25 psi cruiser tires with 125 psi performance bike tires. It isn't about the shape of the contact patch, but rather the pressure.
The RFT comment was not that it will increase the contact patch (at normal pressure, it will have no effect over a non-RFT tire), but rather that as you deflate it, it becomes self supporting and thus does not gain any increased contact patch, at least to the extent that a non-RFT does. As such, your illustrative example tends to not apply to a RFT.
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