Roy H. Bacon

• Honda
• British motorcycles of the 1960s
• Triumph
• AJS and Matchless - the postwar models : lightweight and heavyweight singles and twins from 1945
• British Motorcycles of the 1940s and 1950s
• Ducati V-twins Bevel-drive Models 1971-1986
• Illustrator Motorcycle Legends
• Triumph Bonneville T140 and Derivatives
• Triumph twin restoration
• Triumph Twins and Triples
• Two-stroke exhaust systems
• Two-stroke ports for power