The contact owns a 2021 KTM 690 Enduro-R Motorcycle. The contact stated that the gas tank cover had developed gaps between them. The contact inspected the fuel tank and discovered that the fuel tank was swollen and had expanded, causing the fuel tank covers to develop gaps. The contact stated that the failure was caused by the ethanol fuel used to operate the motorcycle and was concerned that the fuel tank might eventually develop cracks, causing a fuel leak. The vehicle was not yet repaired. The local dealer was notified of the failure. The manufacturer was not contacted. The failure mileage was 820.