While the book provides a historical overview, the term "ultimate" is also used by enthusiasts to describe high-performance or luxury models that represent the peak of the brand's engineering:
is widely known as the title of a definitive visual history book by Hugo Wilson, published by Dorling Kindersley (DK) . It serves as a comprehensive encyclopedia that charts the brand's evolution from its 1903 beginnings in a Milwaukee shed through its modern era. The Book: "Ultimate Harley-Davidson" by Hugo Wilson Ultimate Harley Davidson
: Many riders believe the ultimate Harley is never "stock" but rather a custom-built machine tailored to the individual's style and performance needs. While the book provides a historical overview, the
: The 2025 CVO Road Glide RR is currently cited as the most expensive and powerful production bike the company has ever made, featuring a 131 cubic inch engine and a price tag of $110,000. : The 2025 CVO Road Glide RR is