Triumph T120 Bonneville (1968)

Make Model: Triumph T120R Bonneville 650


Year: 1968
Engine: Four stroke, parallel twin, OHV
Capacity: 649 cc / 39.6 cu in
Bore x Stroke: 71 x 82 mm
Compression Ratio: 8.5:1
Cooling System: Air cooled
Induction: 2 x Amal 1 – 1/6″ carburetors
Ignition: Lucas MA6 alternator with 2 coils
Starting: Kick
Max Power: 34 kW / 46 hp @ 6500 rpm
Clutch: Wet, multiplate
Transmission: 4 Speed, constant mesh
Final Drive: Chain, 106 links
Gear Ratios: 1st 11.80 / 2nd 8.17 / 3rd 6.76 / 4th 5.84:1
Frame: Single front downtube, second bracing member running under tank
Steering Angle: 65o
Front Suspension: Telescopic forks, hydraulic damping
Rear Suspension: Swingarm, twin Girling dampers
Front Brakes: 8″ SLS drum
Rear Brakes: 7″ SLS drum
Front Tyre: 3.25 x 19, Dunlop Universal

Rear Tyre: 4.00 x 18, Dunlop Universal
Dimensions: Length 2020 mm / 85.5 in Width 720 mm / 28.5 in
Wheelbase: 1403 mm / 55.2 in
Seat Height: 775 mm / 30.5 in
Ground Clearance: 127 mm / 5.0 in
Dry Weight: 165 kg / 363 lbs
Fuel Capacity: US: 13.6 Litres / 3.6 US gal other Export: 18 Litres / 4.8 US gal


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