Triumph Bonneville 750 T140E (1979)

The Triumph Bonneville 750 T140E is a motorcycle that was produced in 1979. It has a four-stroke parallel-twin engine with a capacity of 744cc and a bore x stroke of 76 x 82mm. The compression ratio is 8.6:1 and it is air-cooled with induction via 2x 30mm Amal carburetors. The ignition system is battery-operated with dual coil and dual points from Lucas. It can be started with both electric and kick. It has a maximum power of 40.3 kW / 54 hp at 6200 rpm and a maximum torque of 56.6 Nm / 5.77 kgf-m / 41.8 ft-lb at 5500 rpm. The clutch is wet, multi-plate with a five-speed transmission and a final chain drive. The frame is made of tubular steel, with double front downtubes and an oil-bearing large tube backbone. The front suspension is telescopic forks with a rear suspension that is a swingarm and Girling shocks, which is 3-way spring preload adjustable. The front and rear brakes are a single 254 mm disc. The front tire size is 3.25-19 and the rear tire size is 4.00-18. It has a rake of 28o, trail of 109 mm / 4.3 in, and a wheelbase of 1422 mm / 56 in. The length of the bike is 2220 mm / 87.5 in, width is 840 mm / 33.0 in and seat height is 813 mm / 32.0 in. The dry weight is 200 kg / 441 lbs and it has a fuel capacity of 18.2 Liters / 4.8 US gal / 4.0 Imp gal. Its consumption rate is 5.5 L/100 km / 18 km/l / 42 US mpg / 51 Imp mpg and it can reach a top speed of 190 km/h / 118 mph.

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Technical specifications:

Make Model: Triumph Bonneville 750 T140E

Year: 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