What is the engine displacement of the 1979 Triumph T140D?

The 1979 Triumph T140D has an engine displacement of 748.00 ccm (45.64 cubic inches).

1979 Triumph T140D Price, Specs, Review

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Review

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The 1979 Triumph T140D Bonneville Special represents a pivotal moment for Triumph, a year when the iconic Bonneville lineage received a factory custom treatment. Introduced as a more contemporary take on the established T140, the 'D' model aimed to capture a segment of the market looking for factory-fitted mag wheels and a sleeker aesthetic. It competed directly with other large-displacement twins of the era, such as the Norton Commando and even certain Harley-Davidson Sportster models, offering a distinct British alternative.

At its heart, the T140D was powered by a 748.00 ccm (45.64 cubic inches) air-cooled parallel-twin engine. This unit, a development of Triumph's long-standing twin-cylinder design, provided robust and characterful power delivery. While specific horsepower figures varied slightly depending on the market, the engine was known for its accessible torque and a willingness to rev, albeit with the characteristic vibrations of a large-capacity parallel twin. The T140D, categorized as a Vintage motorcycle, showcased the culmination of decades of British engineering in a package designed for the late 70s.

Riding characteristics of the T140D leaned towards a traditional standard motorcycle feel. Its ergonomics were generally upright, offering a comfortable posture for extended rides. The factory-fitted alloy wheels contributed to a slightly more responsive feel than spoked wheels, and braking was typically handled by disc brakes front and rear, an improvement over earlier models. Comfort was respectable for the period, though long-distance touring might have benefited from aftermarket seat upgrades. The suspension, while not overly sophisticated by modern standards, provided a compliant ride suitable for varied road conditions.

The 1979 Triumph T140D Bonneville Special appeals to a specific audience: enthusiasts of British motorcycles, collectors of vintage machinery, and riders who appreciate the mechanical simplicity and raw character of an air-cooled twin. It's a motorcycle for those who value heritage and the authentic riding experience of a bygone era. For someone seeking a piece of motorcycling history that is still eminently rideable and offers a distinct aesthetic, the T140D remains a compelling choice within the Vintage category.

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Pros (Advantages)

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✅ Why buy this bike?

The Triumph T140D 1979 has a classic and iconic design that appeals to motorcycle enthusiasts and collectors.
It features a reliable and powerful 750cc engine, providing a thrilling riding experience.
The bike is known for its smooth handling and stability, making it a joy to ride on both city streets and open highways.
The T140D 1979 model is equipped with dual front disc brakes, offering excellent stopping power and safety.
It has a comfortable riding position and seat, allowing for long hours of riding without discomfort.

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Cons (Disadvantages)

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⚠️ Things to consider

The Triumph T140D 1979 has a reputation for being less reliable compared to modern motorcycles due to its age and potential maintenance issues.
The bike may require more frequent servicing and repairs, as finding parts for a vintage motorcycle can be challenging and expensive.
The handling and performance of the Triumph T140D may not be as advanced or refined as newer models, resulting in a less smooth and comfortable ride.
The fuel efficiency of the motorcycle may be lower compared to modern bikes, leading to higher fuel costs and more frequent stops at gas stations.
The resale value of a vintage motorcycle like the Triumph T140D 1979 may not be as high as newer models, making it a less lucrative investment in the long run.

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Alternatives

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⚖️ Comparison & Competition

Harley-Davidson Sportster Iron 883
A classic American cruiser with a rugged design and a powerful V-twin engine, perfect for riders looking for a raw and rebellious riding experience.
Honda CB1100EX
A modern take on the classic standard motorcycle, the CB1100EX offers a smooth inline-four engine, retro styling, and a comfortable riding position for long journeys.
Yamaha XSR900
A sporty and agile naked bike with a triple-cylinder engine, the XSR900 combines retro styling with modern performance features, making it a versatile choice for urban commuting and weekend rides.
Ducati Scrambler Desert Sled
Designed for off-road adventures, the Desert Sled features a rugged build, long-travel suspension, and an air-cooled V-twin engine, making it an ideal choice for riders seeking adrenaline-fueled escapades.
BMW R nineT
A premium retro-styled motorcycle with a boxer engine, the R nineT offers a blend of classic design elements and advanced technology, appealing to riders looking for a high-end and customizable riding experience