From what I have read, probably here, the handling characteristics are 
different. In addition to those discussed by Dave (see below), the tires release
differently. Bias-ply tires tend to release more smoothly. By that I mean, they 
start sliding more easily than radials during a turn, but that slide is more 
predictible.
Kurt
______________________________ Reply Separator _________________________________
Subject: Re[2]: radials vs. bias-ply
Author:  David_M_Gropper(at)rl.gov at SLINK
Date:    4/14/96 8:42 AM
     Radial tires have a more flexible sidewall, so the stresses involved 
     from side stress are absorbed mainly by the sidewall and less by the 
     rims! 
     
     More important is the fact that radials have a smaller slip angle (the 
     lower the profile, the less the slip angle!). What this means is NOT 
     that the steering geometry itself changes BUT that the vehicle becomes 
     more responsive to smaller changes in direction. In other words the 
     steering gets sharper!! 
     
        Dave.
     
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