... Probably stating the obvious but the rubber compound does deteriorate with time<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
And it starts pretty quick ... on a normal tyre ± 4 years.
Some modern compounds age better though.
<center>
<font color="blue"><i>1981 TR7 FHC Sprint (better known as 't Kreng)
1981 TR7 DHC (not very well known yet, but back on the road)
Also a 1980 TR7 DHC, 1980 TR7 DHC FI, 1981 TR7 FHC
http://tr7beans.blogspot.com/</i></font id="blue"></center>