One perspective:
Modern Tire Dealer article
Quote:
The only problem I had with the study was this statement: “The proportion of tire debris from retread tires and (new) tires is similar to the estimate proportion of retread and OE tires in service.”
Based on the percentage of new truck tires shipped and retreaded in the U.S. from 1998-2007, nearly 57% were new original equipment or replacement tires. Retreads represented 43.2%.
However, close to 68% of all the truck tire debris in the “Commercial Medium Tire Debris Study” was from retreads. Comparable results can be found in the other surveys.
Even if you take into account inconsistencies among retreaders across the country, and the predominance of retreads on trailers, the numbers still don’t match. Even if some of the OE tires are sitting on new trucks and trailers that aren’t selling, shipments over a 10-year period should factor that out.
But this minor discrepancy doesn’t change the findings of the study, which support the safety of retreaded tires, and discount the need for legislation.
Which indicates that while retreads fail at a higher rate than new tires, the rate itself is not high. Retreads, on commercial trucks (designed to be retreaded) do not fail often. Simply more often than new tires. But the difference is not huge.
On the other hand, I would be intrigued to see failure statistics for retreaded passenger car and light truck tires, tires that are not designed to be retreaded like those being discussed in this thread. I would wager that the failure rate would be significantly higher.