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      11-12-2010, 08:33 PM   #14
mapezzul
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Quote:
Originally Posted by DASHOCKER View Post
The production model needs fatter rubber.. Those look like bicyle tires..
They are actually specially designed with differing inner and outer diameters to increase relative width- multiple compound are also used to increase lateral grip.

They are said to make the tire behave as if it was wider.