The weight limit for a passenger on a 2015 Harley-Davidson Fat Boy can vary depending on factors such as the specific model variant, optional accessories, and any modifications made to the motorcycle.
Therefore, to obtain accurate and reliable information regarding the passenger weight limit for a 2015 Harley-Davidson Fat Boy, I recommend referring to the owner's manual or contacting a Harley-Davidson dealership or customer support. They will be able to provide you with the most accurate and current information for your particular model.