What category is the 1981 Triumph T 140 E Bonneville?

The 1981 Triumph T 140 E Bonneville has a Category of Classic.

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

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

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

The 1981 Triumph T 140 E Bonneville has a Engine type of Twin, four-stroke.

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

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

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

The 1981 Triumph T 140 E Bonneville has a Top speed of 176.0 km/h (109.4 mph).

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

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

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

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

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

The 1981 Triumph T 140 E Bonneville has a Weight incl. oil, gas, etc of 206.0 kg (454.2 pounds).

Triumph T 140 E Bonneville - 1981 Specifications and Reviews

Name: 1981 Triumph T 140 E Bonneville
Brand: Triumph

The 1981 Triumph T140E Bonneville is a classic British twin-cylinder roadster suited to riders seeking authentic vintage performance and style. Known for its reliable air-cooled engine and distinctive parallel-twin character, it delivers accessible power with genuine retro appeal. Its 744cc engine and 5-speed transmission make it ideal for everyday riding and long-distance cruising.

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General information
Category	Classic
Year	1981
Model	Triumph T 140 E Bonneville
Engine and Transmission Specifications
Transmission type,final 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
Top speed	176.0 km/h (109.4 mph)
Power	49.00
Engine type	Twin, four-stroke
Capacity:	744.00 ccm (45.40 cubic inches)

Brakes, suspension, Frame and wheels
Rear brakes	Single disc
Front brakes	Single disc
Rear tyre dimensions	4.10-18
Front tyre dimensions	4.10-19

Physical measures and capacities
Fuel capacity	18.50 litres (4.89 gallons)
Weight incl. oil, gas, etc	206.0 kg (454.2 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

49 hp

Peak Power

6.5s

0-60 mph

109.4 mph

Top Speed

Best For

Track20%

City55%

Cornering55%

Daily Riding45%

Touring40%

Passenger35%

Rider Profile

Best For	Suits riders who appreciate classic motorcycling and are comfortable with the quirks and lighter electronics of an early-1980s British parallel twin.
Purpose	Built as a traditional air-cooled roadster for spirited weekend rides and short trips rather than serious distance touring or track work.
Rider Fit	A modest 206 kg curb weight and low-to-moderate seat height make it manageable for riders of average build and experience.
Character	Delivers old-school vibration, mechanical character, and a raw connection to the road that modern bikes rarely offer.
Not Ideal For	Not the right choice for riders seeking modern performance, long-haul comfort, or off-road capability.

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