Triumph Bonneville T120R Roadster 1964 - Specifications & Review

Article Complete Info
| Articleid | 99318 |
|---|---|
| Category | Sport |
| Make | Triumph |
| Model | Bonneville T120R Roadster |
| Year | 1964 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Brazed lug, full-cradle, single downtube |
|---|---|
| Frontbrakes | Expanding brake (drum brake) |
| Frontbrakesdiameter | 203 mm (8.0 inches) |
| Frontsuspension | Telescopic fork, hydraulic damping. |
| Fronttyre | 3.25-19 |
| Rake | 26.0° |
| Rearbrakes | Expanding brake (drum brake) |
| Rearbrakesdiameter | 178 mm (7.0 inches) |
| Rearsuspension | Swing arm, 2 Girling dampers |
| Reartyre | 4.00-18 |
| Seat | Dual seat |
| Wheels | Wire spoked |
Engine & Transmission
| Borexstroke | 71.0 x 82.0 mm (2.8 x 3.2 inches) |
|---|---|
| Clutch | Multi-plate, wet |
| Compression | 8.5:1 |
| Coolingsystem | Air |
| Displacement | 649.00 ccm (39.60 cubic inches) |
| Enginedetails | Twin, four-stroke |
| Fuelsystem | Carburettor. Amal monobloc carburettor |
| Gearbox | 4-speed |
| Ignition | Lucas K2F auto-advance Magneto |
| Power | 46.00 HP (33.6 kW)) @ 6500 RPM |
| Topspeed | 185.0 km/h (115.0 mph) |
| Transmissiontypefinaldrive | Chain |
Other Specifications
| Coloroptions | Gold/Alaskan White |
|---|---|
| Electrical | Lucas RM19 alternator, 6-volt electrical system |
| Instruments | Smiths Magnetic gauges |
| Starter | Kick |
Physical Measures & Capacities
| Dryweight | 165.0 kg (363.8 pounds) |
|---|---|
| Fuelcapacity | 15.14 litres (4.00 gallons) |
| Groundclearance | 127 mm (5.0 inches) |
| Powerweightratio | 0.2788 HP/kg |
| Seatheight | 775 mm (30.5 inches) If adjustable, lowest setting. |
About Triumph Bonneville T120R Roadster 1964
The 1964 Triumph Bonneville T120R Roadster is a quintessential symbol of British motorcycling that seamlessly blends vintage charm with spirited performance. Positioned in the sport category, this motorcycle epitomizes the golden age of two-wheeled engineering, appealing to both keen enthusiasts and collectors alike. With its classic lines and iconic design, the Bonneville T120R captures the essence of freedom on the open road, making it a coveted piece of history that continues to turn heads today.
At the heart of the Bonneville T120R lies a robust 649cc twin-cylinder, four-stroke engine that delivers an exhilarating 46 horsepower at 6,500 RPM. Capable of reaching a top speed of 115 mph, this motorcycle promises a thrilling ride whether you're cruising down the highway or navigating winding backroads. The engine is paired with a 4-speed gearbox that ensures smooth power delivery, while the air-cooled configuration and Lucas K2F auto-advance magneto ignition system further enhance reliability and performance. Riders will appreciate the engaging throttle response and the unmistakable roar of the twin exhaust as they unleash the full potential of this classic machine.
The Bonneville T120R is equipped with a variety of features that showcase its engineering prowess and attention to detail. The robust brazed lug, full-cradle frame provides excellent stability, while the telescopic front forks and swingarm rear suspension with Girling dampers contribute to a comfortable ride over various terrains. Stopping power is managed by dual drum brakes—203 mm in the front and 178 mm in the rear—ensuring dependable control during spirited riding. With a fuel capacity of 4 gallons, riders can confidently embark on longer journeys, knowing they can cover considerable distance before needing to refuel. The motorcycle's stylish color options of Gold and Alaskan White enhance its vintage appeal, making every ride a statement.
PROs:
- Classic Styling: The Bonneville T120R features timeless design elements that attract vintage motorcycle enthusiasts and collectors.
- Engaging Performance: With its powerful twin-engine and responsive handling, the motorcycle offers an exhilarating riding experience.
- Comfortable Ride: The well-engineered suspension system provides a smooth ride, making it suitable for longer journeys.
CONs:
- Weight: At 365 pounds, this motorcycle may be cumbersome for some riders, especially in tight maneuvering situations.
- Braking System: Although reliable, the drum brakes may not offer the same stopping power or responsiveness as modern disc brakes.
- Kick Start Only: The absence of an electric starter may deter some riders, especially those used to modern conveniences.
In essence, the 1964 Triumph Bonneville T120R Roadster is not just a motorcycle; it's a piece of history that offers a unique blend of performance, style, and nostalgia. Whether you are a seasoned rider or a collector, this classic creation captures the spirit of adventure and the joy of motorcycling in its purest form.
