No, the seat height of the Ducati Panigale V4 is not adjustable. The seat height of the Panigale V4 is fixed and cannot be altered. It is set at a specific height by the manufacturer during the design and production of the motorcycle. If you're considering the Panigale V4 and have concerns about the seat height, it's recommended to visit a Ducati dealership or sit on the bike to assess if it suits your comfort and riding needs.