The Traffic Accident Reconstruction Origin -ARnews-

Re: Need some info about friction coefficent of different kinds of tread relief

Wilt Nelson ([email protected])
Sun, 11 Oct 1998 10:37:49 -0400 (EDT)

Certainly if one axle of the car was equipped with a new (tread) tire and on the other side the tire was bald (like a racing slick), braking on any surface will result in differing drag factors and tend to yaw the car. On a low coefficient surface the bald tire will lock up before the treaded tire, lose traction and skid and perhaps result in loss of control. You should also be aware that tires (new w/ tread) have different properties that may also affect the drag factors on each wheel. These deal with the wearing and stopping characteristics of the rubber compound and are coded on the tire sidewall. Try the web site http://199.2.194.216/FARO/tire.htm for more info.
WIlt
Wilt Nelson
[email protected]

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