Triumph T 140 E Bonneville Special - 1980 Specifications and Reviews
The 1980 Triumph T 140 E Bonneville Special is a classic British naked bike that appeals to traditionalist riders seeking authentic retro character. Powered by an air-cooled 744cc parallel-twin engine producing 49 horsepower, it's best known for its lightweight handling and timeless styling. This model represents the final evolution of Triumph's iconic Bonneville lineage before the marque's decline.
1980
General information | |
| Category | Naked bike |
| Year | 1980 |
| 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.
Rider Reviews
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