Categories: Triumph

Triumph Bonneville 750 T140E Final Edition (1981)

The Triumph Bonneville 750 T140E Final Edition motorcycle was released in 1981 and has a four-stroke, parallel twin, OHV engine with a capacity of 744cc. It has a compression ratio of 8.6:1 and is air-cooled. The ignition is battery/dual coil/dual points/Lucas and it has both an electric and kick start. The maximum power is 40.3 kW at 6200 rpm and the maximum torque is 56.6 Nm at 5500 rpm. The clutch is wet and multiplate and the transmission is five-speed with a chain final drive. The frame is tubular steel with double front downtubes and oil-bearing large tube backbone. The front suspension is telescopic forks and the rear suspension is a swingarm with Girling shocks that are 3-way spring preload adjustable. Both the front and rear brakes are single-disc with a 1 piston caliper. The front tyre is 3.25-19 and the rear tyre is 4.00-18. The rake is 28o and the trail is 109mm / 4.3 in. The wheelbase is 1422mm / 56 in and the length is 2220mm / 87.5 in. The width is 840mm / 33.0 in and the 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 Litres / 4.8 US gal / 4.0 Imp gal. The consumption is 5.5 L/100 km / 18 km/l / 42 US mpg / 51 Imp mpg and the top speed is 190 km/h / 118 mph.


Technical specifications:

Make Model: Triumph Bonneville 750 T140E Final Edition

Year: 1981

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
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