Triumph T120V Bonneville (1974)

The Triumph T120V Bonneville (1974) is a vintage motorcycle with a four stroke, parallel twin, OHV engine and a capacity of 649cc. It has a compression ratio of 9.0:1 and cooling system that uses air. The ignition is battery operated and coil powered and the bike starts using a kick. The Bonneville has a 12V alternator for lighting and an oil system that includes a double plunger pump and dry sump. The clutch is a multi-disc, wet model and the bike boasts a maximum power of 37.3 kW / 50 hp @ 7000 rpm and a maximum torque of 52.1 Nm / 5.3 kgf-m / 38.5 lb-ft @ 6000 rpm. The transmission is four speed with a final drive using a chain. The front suspension is telescopic forks and the rear suspension is a swinging arm, dual shocks model. The Bonneville has drum brakes in the front and rear and uses 3.25 -19 and 4.00 -18 tires, respectively. The fuel capacity is 16L / 4.2 US gal / 3.5 Imp gal and the wet weight is 181 kg / 399 lbs. The classic bike has gear ratios of 4th at 4.95, 3rd at 6.14, 2nd at 8.36, and 1st at 12.08.

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Technical specifications:

Make Model: Triumph Bonneville 650 T120V

Year: 1974

Engine: Four stroke, parallel twin, OHV

Capacity: 649 cc / 39.6 cu in

Bore x Stroke: 71 x 82 mm

Compression Ratio: 9.0:1

Cooling System: Air cooled

Induction: 2 x 30 mm Amal concentric carburetors

Ignition: Battery, coil

Starting: Kick

Lighting system: 12V alternator

Oil system.: Double plunger pump, dry sump

Oil capacity: 3.4 L / 7.2 US pt / 6 Imp pt

Clutch: Multi-disc, wet

Max Power: 37.3 kW / 50 hp @ 7000 rpm

Max Toque: 52.1 Nm / 5.3 kgf-m / 38.5 lb-ft @ 6000 rpm

Transmission: 4 Speed

Final Drive: Chain

Gear Ratios: 4th 4.95 / 3rd 6.14 / 2nd 8.36 / 1st 12.08

Front Suspension: Telescopic forks

Rear Suspension: Swinging arm, dual shocks

Front Brakes: Drum

Rear Brakes: Drum

Front Tyre: 3.25 -19

Rear Tyre: 4.00 -18

Fuel Capacity: 16L / 4.2 US gal / 3.5 Imp gal

Wet Weight: 181 kg / 399 lbs