What is the number one selling motorcycle in the US?

Could you please elaborate on the current trend in motorcycle sales in the United States? Specifically, I'm interested in knowing which motorcycle model holds the title of the number one selling bike in the country. It would be fascinating to understand the reasons behind its popularity, such as its performance, design, or price point. Additionally, I'm curious about how the market has changed over the years and if this particular model has been a consistent top seller or if there have been any recent shifts. Could you provide some insights into the consumer preferences and trends driving this success?