2021 Kzrv Sporttrek

Tire Blowout Information Tire Type: Lionshead - Ridgeway Sport ST ST 225 / 75 R 15 Original Tires on 2021 Sport Trek 327VIK Purchased From: Southern RV Of McDonough, GA Purchase Date: [XXX] Milage on Tires at Event: >4000 miles Vehicle stored on Owners Property Incident Information [XXX] Driving [XXX] Northbound before exit [XXX], Driver-Side-Rear-Axel Tire blowout caused damage to Recreational Vehilce described above causing damage to Underbody and side of RV. Insurance claim made to Progressive Insurance Claim Number: [XXX] Insurance adjuster indicated sidewall failed INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I had 3 of these same tire blow within a week and a half of each other. All 3 tires were installed new on my camper trailer at factory. The camper was purchased in August 2021. The tires are Castle Rock ST Radial 226 size ST225/75/ R15. It appears the sidewalls failed leading to tread separation and in one case, the tread separation led to several hundreds of dollars of damage to the camper itself. My safety was at risk due to having to pull over and change the blown tires while on the side of the interstate. debris from the tread separation could have damaged other vehicles or caused drivers to wreck attempting to avoid colliding with tire components. The tires were not professionally inspected but I may be able to save one for inspection if a response is made quickly. There was no prior warning of the failure due to no installed equipment. Pictures included are of the 3rd tire that failed and the damage it caused.