What category is the 1981 Triumph T 140 E Bonneville Special?

The 1981 Triumph T 140 E Bonneville Special has a Category of Unspecified category.

What is the engine size of the 1981 Triumph T 140 E Bonneville Special?

The 1981 Triumph T 140 E Bonneville Special has a Capacity: of 744.00 ccm (45.40 cubic inches).

What type of engine does the 1981 Triumph T 140 E Bonneville Special have?

The 1981 Triumph T 140 E Bonneville Special has a Engine type of Twin.

What is the engine power of the 1981 Triumph T 140 E Bonneville Special?

The 1981 Triumph T 140 E Bonneville Special has a Power of 49.00.

Is the 1981 Triumph T 140 E Bonneville Special air cooled or liquid cooled?

The 1981 Triumph T 140 E Bonneville Special has a Cooling system of Air.

How many gears does the 1981 Triumph T 140 E Bonneville Special have?

The 1981 Triumph T 140 E Bonneville Special has a Gearbox of 5-speed.

How much does the 1981 Triumph T 140 E Bonneville Special weigh?

The 1981 Triumph T 140 E Bonneville Special has a Weight incl. oil, gas, etc of 200.0 kg (440.9 pounds).

What is the top speed of the 1981 Triumph T 140 E Bonneville Special?

The 1981 Triumph T 140 E Bonneville Special has a Top speed of 160.0 km/h (99.4 mph).

Triumph T 140 E Bonneville Special - 1981 Specifications and Reviews

Name: 1981 Triumph T 140 E Bonneville Special
Brand: Triumph

The 1981 Triumph T140E Bonneville Special is a classic British parallel-twin cruiser that appeals to riders seeking authentic retro styling and manageable performance. Known for its iconic design heritage and reliable 744cc air-cooled engine, this lightweight machine excels as an accessible entry into vintage motorcycle ownership with straightforward mechanics and genuine character.

⇄ Compare against another bike 📅 All Years

1981

1980

❮❯

Triumph T 140 E Bonneville Special 1981 19681 Thumb

Add/Upload pictures for this motorcycle

General information
Category	Unspecified category
Year	1981
Model	Triumph T 140 E Bonneville Special
Engine and Transmission Specifications
Transmission typefinal drive	Chain
Gearbox	5-speed
Cooling system	Air
Fuel control	OHV
Valves per cylinder	2
Bore x stroke	76.0 x 82.0 mm (3.0 x 3.2 inches)
Compression	9.0:1
Power	49.00
Stroke	4
Engine type	Twin
Capacity:	744.00 ccm (45.40 cubic inches)
Physical measures and capacities
Weight incl. oil, gas, etc	200.0 kg (440.9 pounds)

Triumph T 140 E Bonneville Special dimensions and frame
Rear brakes	Single disc
Front brakes	Single disc
Rear tyre dimensions	4.10-18
Front tyre dimensions	4.10-19
Speed and acceleration
Top speed	160.0 km/h (99.4 mph)

Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity	18.50 litres (4.89 gallons)

Performance Profile & Rider Fit

49 hp

Peak Power

7.5s

0-60 mph

99.4 mph

Top Speed

Best For

Track25%

City55%

Cornering60%

Daily Riding45%

Touring40%

Passenger35%

Rider Profile

Best For	Best suited to riders with some experience on classic-style twins, as the air-cooled parallel-twin and drum-era chassis roots reward smooth, deliberate inputs.
Purpose	This is a classic British roadster built for spirited backroad rides and weekend cruising rather than outright performance or long-distance touring.
Rider Fit	A moderate 200kg curb weight and upright seating make it manageable for riders of average build, though the kickstart-era ergonomics and narrow seat suit shorter rides best.
Character	It has the raw, torquey charm and mechanical honesty of a classic Bonneville, rewarding riders who enjoy vintage engineering over modern refinement.
Not Ideal For	This is not the right bike for riders seeking high-speed touring comfort, modern electronics, or any kind of off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.