What is the number one selling bike in the US?

Could you please elaborate on the current state of the US bike market? Specifically, I'm curious to know which bike model is currently the top-selling one in the country. Is there a particular brand or style that seems to be dominating the sales charts? Additionally, what factors do you think contribute to the popularity of this particular bike, and how does it compare to other popular models in terms of features, price, and overall appeal to consumers?