The contact owns a 2018 Honda GL1800 Motorcycle. The contact stated that while releasing the accelerator pedal at speeds of 40 MPH or higher, whether on cruise control or not, the motorcycle experienced the death wobble. The motorcycle was taken to the dealer and was not diagnosed. The contact stated that the bearings on the handlebar were replaced; however, the failure persisted. The motorcycle was taken to another dealer, Xtreme Machines (700 NJ-33, Millstone, NJ 08535); who did not diagnose the failure and confirmed that the motorcycle was not safe to ride. The dealer tightened the bolts on the 2nd set of bearings underneath the bearings on the handlebar; however, the failure persisted. The manufacturer was informed of the failure and opened a case. The failure mileage was approximately 9,000.