Final answer:
Groups of Harley Davidson owners coming together for group rides, referred to as HOG members, constitute a 'Brand community' and represent a subculture focused on motorcycle enthusiasm.
Step-by-step explanation:
Harley Davidson motorcycle owners who meet for group rides and are often referred to as HOG members are part of a Brand community. This community is a form of a subculture within the United States which revolves around a dedication to motorcycles. Beyond just a shared interest in a type of vehicle, these groups provide social opportunities and a sense of identity for their members, similar to the way various social-based groups emerged to meet community needs, such as the Satyrs Motorcycle Club for gay motorcycle enthusiasts.