The contact owns a 2019 Ram Promaster 3500 equipped with Nexen Tires, Tire Line: Rodian HT, Tire Size: 225/75/16, DOT Number: (N/A). The contact stated that the driver-??s and passenger-??s side tires showed evidence of tread separation. The tires were replaced. On another occasion, the contact became aware that the rear tires had started to disintegrate. The tires were replaced. The manufacturer was contacted and stated that the tires were defective and should not have been installed on the RV. The failure mileage was 20,000. UPDATE 06/15/23- Consumer states " I had subsequent correspondence with Winnebago. They claimed no responsibility for the excessive tire wear. They stated that they buy the chassis from Promaster with those tires in place. I filed a warranty claim with Nexan. They responded that the tire warranty was null and void because these tires are not to be used on a motorhome. They provided me a copy of the warranty. The representative told me the tires had never been tested or approved to be used on a motorhome. They claim to have given Winnebago notice. There were numerous discussions with Promaster, Winnebago and Nexan. Promaster did not claim any responsibility in the matter. Their position was that they sell the chassis to Winnebago and have no knowledge of what they build on the chassis. Winnebago said that they would refer the matter to their engineering department. Nexan stated that as an act of "goodwill" they would rebate me. The point of contact with Nexan was Aaron Wilson @ 330-949-2829 ext 165. awilson@NexanTireUSA.com. He reiterated that these tires were not designed for the motorhome due to the excessive weight. Unloaded the motorhome is 9,600 lbs. The tires were never tested on this unit. He stated that he had documentation that Winnebago was advised accordingly."

- Port St. Lucie, FL, USA