On Feb 1, 1:31*am, Chalo wrote:

My own experience with deep dry sand and gravel (in local playgrounds
and Gulf Coast beaches) is that my MTB with 3" tires consumes
prodigious amounts of my muscle power digging its way through, but my
street bikes with 32-40mm tires are more likely to stop dead in their
tracks.

Here's a picture of Niels Albert not being stopped dead is his tracks
by deep sand today:
http://www.cyclingnews.com/cross.php...90204ispa-0274

Bret