1979 Triumph Bonneville 750 T140E America technical specifications

Technical specifications

Model: Bonneville 750 T140E America
Years: 1979
Engine: Four stroke, parallel twin, OHV, 2 valves per cylinder
Capacity: 744 cc / 45.4 cu in
Bore x Stroke: 76 x 82 mm
Compression Ratio: 8.6:1
Cooling System: Air cooled
Induction: 2 x 30 mm Amal carburetors
Ignition: Battery / dual coil / dual points / Lucas
Starting: Electric and kick
Max Power: 40.3 kW / 54 hp @ 6200 rpm
Max Torque: 56.6 Nm / 5.77 kgf-m / 41.8 ft-lb @5500 rpm
Clutch: Wet, multiplate
Transmission: 5 Speed
Final Drive: Chain, 106 links
Gear Ratios: 1st 12.25 / 2nd 8.63 / 3rd 6.58 / 4th 5.59 / 5th 4.70:1
Frame: Tubular steel, double front downtubes, oil bearing large tube backbone
Front Suspension: Telescopic forks
Rear Suspension: Swingarm, Girling shocks, 3-way spring preload adjustable
Front Brakes: Single 254 mm disc, 1 piston caliper
Rear Brakes: Single 254 mm disc, 1 piston caliper
Front Tyre: 3.25-19
Rear Tyre: 4.00-18
Rake: 28o
Trail: 109 mm / 4.3 in
Wheelbase: 1422 mm / 56 in
Dimensions: Length: 2220 mm / 87.5 in Width: 840 mm / 33.0 in
Seat Height: 813 mm / 32.0 in
Dry Weight: 200 kg / 441 lbs
Fuel Capacity: 18.2 Litres / 4.8 US gal / 4.0 Imp gal
Consumption: 5.5 L/100 km / 18 km/l / 42 US mpg / 51 Imp mpg
Top Speed: 190 km/h / 118 mph

Photo gallery