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Naked Motorcycles

1983Triumph T 140 E Bonneville

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The 1983 Triumph T 140 E Bonneville is a classic British parallel-twin motorcycle that appeals to riders seeking authentic retro styling and reliable mid-range performance. Known for its distinctive character, manageable 744cc air-cooled engine, and accessible handling, it represents the final generation of Triumph's legendary Bonneville lineage and remains prized by vintage enthusiasts.

Capacity
744.0 ccm
Engine
Parallel Twin
Gearbox
5-speed
Wet weight
206.0 kg
Seat height
Not on record
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Power
49.0 HP (36.0 kW)

What’s new for the 1983 Triumph T 140 E Bonneville

vs the 1982
Spec19821983
Power 49.0 HP (36.0 kW) @ 6500 RPM 49.0 HP (36.0 kW)
Other years 1980 1981 1982 1983

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 40Agility 60Comfort 45Off-road 15Touring 40Road manners 65
Off-road & trail15%
Cornering55%
City riding50%
Daily riding45%
Touring40%
Two-up35%
Track20%
Best for
This is a classic British parallel-twin built for spirited weekend rides, café-racer style backroad cruising, and nostalgic ownership rather than outright performance.
Built for
It has an charismatic, mechanical soul with old-school vibration, torquey low-end delivery, and the raw analog feel typical of air-cooled OHV Triumph twins of its era.
Not ideal for
It's not a good fit for new riders wanting modern reliability, long-distance tourers needing wind protection and range, or anyone seeking high-speed or off-road capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Full specifications

Engine
Capacity
744.0 ccm
Power
49.0 HP (36.0 kW)
Engine type
Parallel Twin
Power/weight ratio
0.2379 HP/kg (wet)
Bore x stroke
76.0 x 82.0 mm
Compression
9.0:1
Cooling system
Air
Valves per cylinder
2
Torque
Not on record - add it
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Performance
Top speed
176.0 km/h (109.4 mph)
Dimensions & weight
Wet weight
206.0 kg
Fuel capacity
18.50 litres
Seat height
Not on record - add it
Dry weight
Not on record - add it
Brakes & wheels
Front brakes
Single disc
Rear brakes
Single disc
Front tyre
4.10-19
Rear tyre
4.10-18

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 1980198119821983
Capacity 744 cc 744 cc 744 cc 744 cc
Fuel capacity 18.5 L 18.5 L 18.5 L 18.5 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

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Common questions

What is the engine size of the Triumph T 140 E Bonneville?

The 1983 Triumph T 140 E Bonneville has a Capacity of 744.0 ccm (45.40 cubic inches).

What engine power does the Triumph T 140 E Bonneville have?

The 1983 Triumph T 140 E Bonneville has a Power of 49.0 HP (36.0 kW).

How many gears does the Triumph T 140 E Bonneville have?

The 1983 Triumph T 140 E Bonneville has a Gearbox of 5-speed.

How much does the Triumph T 140 E Bonneville weigh?

The 1983 Triumph T 140 E Bonneville has a Wet weight of 206.0 kg (454.2 pounds).

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