The motorcycling world mourns the loss of Warner Riley, a legendary racer, engineer, and long-time collaborator with S&S Cycle, who passed away at the age of 83. Known for his relentless pursuit of speed and innovation, Riley played a crucial role in shaping the performance legacy of S&S Cycle from the mid-1960s onward.
Riley’s partnership with S&S founder George Smith began with a simple tech issue and quickly grew into a friendship that led both men to the Bonneville Salt Flats, where Riley earned a place in the elite 200 mph Club. Over the years, he helped set more than 16 land speed records and powered the Denis Manning streamliner project that set a world record in 1970.
Beyond the track, Riley’s expertise as a mechanical engineer and his deep knowledge of Harley-Davidson performance made him a valuable product developer, test rider, and even legal consultant. He also contributed to industry magazines, helping S&S grow its reputation through smart, strategic media outreach.
Though he retired from active racing in the early ’80s, Riley continued to support S&S and the Bonneville racing scene. His contributions to American motorcycling and close friendship with the Smith family remain unmatched.
Warner Riley will be remembered as a true legend—on and off the track.
