News Article about Tire Age Limits
Something we RVers know all to well, now "!!!EXPOSED!!!" in our ever vigilant media: ### American tire companies have helped to defeat proposed laws in eight states that would require inspection of ...
Forum Discussion
Thank you, sir! It is a pleasure to get the facts from someone who actually knows 'em and is willing to share.
CapriRacer wrote:burlmart wrote:
Tireman, w/ 40 years experience as tire Design & Quality engineer with focus on failed tire forensics, what is main explanation RV tires crack on sidewalls long before on a daily use, low-mileage vehicle?
Well I also have 40+ years as a tire design and quality engineer with a focus on tire forensics - just at a different company - so I feel qualified to answer your question.
Cracking is the combination of the state of the material AND the amount of flexing that has taken place.
Tires have antioxidants (AO's) mixed into the rubber and flexing the tire allows those AO's to migrate to where they are needed. Ergo, tires that are used regularly have protection that gets used up slower than the migration - and RV's are the opposite of that.burlmart wrote:
Does anybody know whether it is simply exposure to elements that causes RV tires to sidewall crack, or is it more that they are not 'flexed' by everyday use?.....
Hopefully the above explained that.
