Triumph T 120R Bonneville (1965)

The Triumph T120R Bonneville 650 is a classic motorcycle produced in 1965. This bike is powered by a four-stroke parallel twin engine with an OHV, delivering a capacity of 649cc and a compression ratio of 8.5:1. It features two Amal carburetors and Lucas MA6 alternator ignition. The bike has a maximum power of 34 kW at 6500 rpm, clutch with wet multi plates, and a four-speed constant mesh transmission. It has a chain drive, 106 links, and a single front downtube frame with a second bracing member running under the tank. The steering angle is 65 degrees, and it has telescopic forks and hydraulic damping front suspension, twin Girling dampers at the rear. It features an 8″ SLS drum front brake and a 7″ SLS drum rear brake. The bike comes with 3.25 x 19 Dunlop Universal front tires and 4.00 x 18 Dunlop Universal rear tires. The Triumph T120R Bonneville 650 is 2020 mm long, 720 mm wide, 1403 mm in wheelbase, and has a seat height of 775 mm. The bike has a ground clearance of 127 mm and a dry weight of 165 kg. The fuel capacity of the bike varies, with the US model having a capacity of 13.6 L, while others have 18 L. The Triumph T120R Bonneville 650 is an iconic motorcycle that’s still admired to this day.

Technical specifications:

Make Model: Triumph T120R Bonneville 650

Year: 1965
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 L / 3.6 US gal / 3 Imp gal / UK and other Export: 18 L / 4.8 US gal / 4 Imp gal