Retreads are not the devil, and Treadwrights are exceptional retreads. They were exceptional retreads before they had their bead-to-bead rubber tech, and now they're even better. All tires can fail. When a new tire fails, people usually dismiss it more easily as a freak occurence, but when a retread fails, their misconceptions/prejudices lead them to blame the retreading without a second thought. Treadwright's failure rate is comparable to if not better than other "regular" tire manufacturers.
The misconception that retreads are dangerous comes from a variety of factors especially those somewhat unique to the trucking industry. Even in the trucking industry, retreads are not inherently more dangerous than new tires. Source: http://www.wsdot.wa.gov/NR/rdonlyres...thesis9309.pdf
Here is the conclusion section of the study. If you have questions/criticisms, they're likely addressed earlier in the study, so I suggest reading through it because it is extremely thorough. I understand that reading scientific papers can be boring if not difficult to the point of impenetrable for many people; I am a scientist and had to learn not only how to read but also how to author this kind of literature years ago, so I'll do my best to answer questions if anyone has them.
Misunderstandings by the typical road user have incorrectly attributed the nature, extent, and contributing factors precipitating the formation of the roadside alligator. In clarifying this issue, several tire debris studies conducted since 1990 have sought to determine the probable cause of tire failure and to validate or disprove whether a commercial medium- or wide-base truck tire’s retread status is also a contributing factor. The TDS was one of such studies. Executed during summer 2007, this survey involved the collection of 85,000 pounds of rubber that provided approximately 1,500 truck tire samples for subsequent failure analysis.
The TDS results suggest that the proportions of commercial medium tire debris collected according to adjusted VMT shares may not be significantly overrepresented if localized traffic flow characteristics are taken into account. Indeed, the OE versus retread proportions of the collected tire debris broadly correlated with accepted industry expectations. There was a strong similarity between casings and tire fragments with respect to probable damage/failure cause where the OE/retread status was known. In these cases, road hazard or maintenance/operational reasons were two of the top three probable damage/failure causes. The importance of this result suggests that the majority of tire debris items found on the nation’s highways is not a result of manufacturing/process deficiencies. Indeed, similar findings are corroborated in earlier studies of tire debris that also prove the direct link between deficient tire maintenance and inflation pressures and premature tire failure.
U.S. trucking industry practices have strongly influenced the OE/retread tire mix on the typical 18-wheeler tractor-trailer combination (described in paragraphs #1 (page 9) and #4 (page 10)). Insulation of the driver’s cab from the steer/drive versus trailer axle tires has also contributed to the extent that a failure in any tire may go unnoticed by the driver while the vehicle is in operation (discussed in paragraph #4 (page #10)). These two factors, we believe, suggest that the retread tire fragments tested were not overrepresented in the debris items collected. With respect to the tire and truck fleet industry stakeholders, there is the possibility that the TDS results confirm accepted beliefs. In any given location roadside alligators often represent tire debris from all vehicle types as inadequate tire inflation pressure has the potential to precipitate tire failure for all types of tire (i.e., OE and retread) and not just the commercial medium. However, two primary challenges remain: firstly increasing public awareness about the origins, characteristics, and impacts of tire debris, and, secondly, ensuring adherence to the highest standards in commercial driver truck operations and associated tire maintenance. Resolving these challenges has the potential to see a significant reduction in roadside tire debris, correct the understanding of all highway users regarding the origins of the roadside alligator and sustain the attention of all vehicle operators about the importance of maintaining correct tire inflation pressures.