Introduction:

Specifications:

• Model: Triumph Bonneville T120
• Engine: 649cc parallel-twin, 4-stroke
• Bore x Stroke: 71mm x 82mm
• Compression Ratio: 8.5:1
• Power Output: Approximately 46 hp at 6,500 rpm
• Transmission: 4-speed manual
• Top Speed: Around 115 mph (185 km/h)
• Frame: Tubular steel duplex cradle
• Suspension: Telescopic forks (front), swingarm with twin shock absorbers (rear)
• Brakes: Drum brakes (front and rear)
• Weight: Approximately 363 lbs (165 kg) dry

Manufacturer Design:

• Designer: Edward Turner
• Production: The Bonneville was introduced by Triumph Engineering in 1959 and named after the Bonneville Salt Flats in Utah, where Triumph had set motorcycle speed records.
• Design Highlights: The design featured a distinctive fuel tank with a “teardrop” shape, twin carburetors for improved performance, and a sleek, streamlined appearance. The bike’s chrome and polished alloy parts gave it a classic and elegant look.

Legacy:

• The Triumph Bonneville 650cc became an icon in the motorcycle world, renowned for its performance, handling, and style.
• It was popular among both enthusiasts and racers, contributing significantly to Triumph’s reputation and success during the mid-20th century.
• The Bonneville became a symbol of the 1960s counterculture and was favored by celebrities such as Steve McQueen and Bob Dylan, enhancing its legendary status.

Most Interesting Facts:

• Record Setter: The Bonneville was named after the Bonneville Salt Flats, where Johnny Allen set a speed record of 193.72 mph on a Triumph-powered motorcycle in 1956.
• Cultural Icon: The Bonneville’s association with the 1960s rock ‘n’ roll era and its appearance in numerous movies and TV shows cemented its place in popular culture.
• Enduring Appeal: The Triumph Bonneville has been continuously updated and remains in production today, maintaining its classic aesthetic while incorporating modern technology.

Important Facts:

• Influence on Motorcycle Design: The Bonneville’s success influenced the design of many subsequent motorcycles, both from Triumph and other manufacturers, setting standards for performance and style.

• Racing Heritage: The Bonneville was not only popular on the streets but also had a significant presence in racing, particularly in flat track and road racing, contributing to its performance legacy.