Triumph T120 Bonneville 1960 - Specifications & Review

T120 Bonneville

Article Complete Info

Articleid513516
CategorySport
MakeTriumph
ModelT120 Bonneville
Year1960

Chassis, Suspension, Brakes & Wheels

FrametypeDuplex frame
FrontbrakesExpanding brake (drum brake)
Frontbrakesdiameter203 mm (8.0 inches)
FrontsuspensionTelescopic fork.
Fronttyre3.25-18
RearbrakesExpanding brake (drum brake)
Rearbrakesdiameter178 mm (7.0 inches)
RearsuspensionTwin shocks. Girlings 100 lb/ft spring tension, adjustable pre-set.
Reartyre3.50-18
SeatDual seat

Engine & Transmission

Borexstroke71.0 x 82.0 mm (2.8 x 3.2 inches)
ClutchMulti-plate, wet
CoolingsystemAir
Displacement649.00 ccm (39.60 cubic inches)
EnginedetailsTwin, four-stroke
FuelsystemCarburettor. Amal monobloc carburettor
Gearbox4-speed
IgnitionLucas K2F auto-advance Magneto
Power46.00 HP (33.6 kW)) @ 6700 RPM
Topspeed185.0 km/h (115.0 mph)
TransmissiontypefinaldriveChain

Other Specifications

ColoroptionsPearl Grey/Azure Blue
ElectricalAC Alternator

Physical Measures & Capacities

Dryweight178.0 kg (392.4 pounds)
Fuelcapacity15.14 litres (4.00 gallons)
Groundclearance127 mm (5.0 inches)
Powerweightratio0.2584 HP/kg
Seatheight770 mm (30.3 inches) If adjustable, lowest setting.

About Triumph T120 Bonneville 1960

The 1960 Triumph T120 Bonneville is a true icon of British motorcycling, a machine that embodies the spirit of freedom and adventure that defined the golden era of two-wheeled travel. Positioned as a high-performance sport motorcycle, the T120 Bonneville was designed for riders who craved both speed and style. With its elegant lines and classic aesthetics, it captured the hearts of enthusiasts and became a symbol of rebellion and the open road. As Triumph’s flagship model, the Bonneville was engineered to deliver a thrilling ride while boasting a distinctive charm that continues to resonate with vintage motorcycle aficionados.

At the heart of the T120 Bonneville is a robust 649cc twin-cylinder, four-stroke engine that delivers a remarkable 46 horsepower at 6700 RPM. This power translates into exhilarating performance, allowing the Bonneville to reach a top speed of 115 mph (185 km/h), making it a formidable contender on both the streets and the racetracks of the time. The air-cooled engine features a responsive Amal monobloc carburetor, ensuring smooth acceleration and a satisfying throttle response. Coupled with a 4-speed gearbox and a multi-plate wet clutch, riders experience seamless gear transitions and the thrill of putting the power to the pavement, all while the bike’s lightweight frame (weighing in at 392.4 pounds) ensures agile handling and maneuverability.

The T120 Bonneville is not just about raw power; it also showcases several innovative features that enhance the riding experience. The motorcycle's duplex frame design offers both rigidity and comfort, allowing for confident cornering and stability at high speeds. The front telescopic forks and twin rear shocks with adjustable pre-set spring tension provide a smooth ride, absorbing bumps and imperfections on the road. With a fuel capacity of 4 gallons, riders can enjoy longer journeys with fewer stops. Aesthetically, the T120 is adorned in the striking color options of Pearl Grey and Azure Blue, ensuring that it stands out in any crowd, whether at a classic bike show or cruising along scenic highways.

Pros:

  1. Classic Styling: The Bonneville's timeless design and color options make it a head-turner on any road.
  2. Impressive Performance: With 46 HP and a top speed of 115 mph, it offers exhilarating performance that appeals to sport bike enthusiasts.
  3. Comfortable Ride: The suspension setup provides excellent comfort and stability, making it suitable for both short rides and long journeys.

Cons:

  1. Limited Braking Technology: With drum brakes at both ends, stopping power may not match modern standards, requiring careful riding.
  2. Heavy Weight: At 392.4 pounds, it may feel cumbersome for some riders, especially when maneuvering at low speeds.
  3. Maintenance Needs: As a vintage motorcycle, parts may be harder to come by, and regular maintenance is essential to keep it running smoothly.

In summary, the 1960 Triumph T120 Bonneville is not just a motorcycle; it’s a piece of history that continues to inspire and excite riders who appreciate the blend of classic design and spirited performance. Whether you're a seasoned enthusiast or a newcomer to the world of motorcycles, the Bonneville promises an unforgettable riding experience, steeped in the legacy of Triumph.

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