06-11-2008, 08:35 PM
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#122 (permalink)
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Master EcoModder
Join Date: May 2008
Location: boston ma
Posts: 381
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There used to be a tire sold with a really deep groove in the center.. It sort of looked like this patent.
http://www.google.com/patents?id=zds...BAJ&dq=6123129 |
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