[Vintage-race] Trailer tires

[John.Desantis at Inficon.com]

        Two friends of mine have recently had multiple trailer tire 
failures (tread pealing off) while on trips.  When purchasing replacement 
tires, friend #2 was told that trailer tires delaminate in about 4 years. 
The tire seller also mentioned that it was easy to determine when the 
tires were near failure.  He mentioned that the center section of the 
tread raises up.  So I go home and check out my 4 year old ST205/75-15's 
and they are very distinctly raised in the center, approximately 1/4 inch. 
 When I checked the spare that is the same age as the tires on the 
trailer- it looked normal.  I am planning to buy 4 new tires come spring.

        Reading anything I could find on the web about trailer tires I 
found the it is highly recommended to replace them every 
4 year.  I also found info on tread delamination, I could not find any 
thing mentioned about the tread raising up. 

        Has anyone out there had similar experience with raised tread? 


John DeSantis
Inficon
Phone 315-434-1196
Fax 315-434-9908
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