1948 Vincent HRD Series B RapideThe Vincent Rapide needs no introduction, it was the fastest standard motorcycle in production when it was launched in 1946. A mechanical marvel it was too, with its unit construction 998cc V Twin engine that doubled as a stressed structural member eliminating the traditional frame. The Vincent Series B Rapide offered exceptional performance, reliability, and handling. Producing around 45 horsepower, it could exceed 110 mphextraordinary for its day.