Triumph Bonneville 2011 vs. Triumph Speed Twin 1200 2019

The Triumph Bonneville model year 2011 and the Triumph Speed Twin 1200 model year 2019 are both naked bikes from Triumph, but they have several differences in terms of technical specifications and strengths.

Starting with the technical specifications, both bikes have an in-line crankpin offset engine type, which provides smooth power delivery. However, the Bonneville has a smaller engine displacement of 865cc compared to the Speed Twin's 1200cc. This results in a difference in engine power, with the Bonneville producing 67 HP and the Speed Twin producing 97 HP. Similarly, the torque output is also higher in the Speed Twin, with 112 Nm compared to the Bonneville's 69 Nm. Another difference is the cooling system, with the Bonneville using air cooling and the Speed Twin using liquid cooling. This allows the Speed Twin to maintain optimal engine temperature even during long rides or in hot weather conditions.

In terms of suspension, the Bonneville features a telescopic fork front suspension and dual shock absorbers at the rear. On the other hand, the Speed Twin has an upside-down telescopic fork front suspension and dual shock absorbers at the rear. This upgraded suspension setup on the Speed Twin provides better handling and stability, especially during cornering or on uneven road surfaces.

Triumph Bonneville 2011

Both bikes have a steel frame, which provides a sturdy and reliable structure. However, the Speed Twin has an advantage in the braking department, with four-piston front brakes from Brembo compared to the Bonneville's double piston front brakes from Nissin. This results in improved braking performance and better control over the bike.

In terms of dimensions and weights, the Speed Twin has a slightly narrower front tire width of 120mm compared to the Bonneville's 100mm. The rear tire width is also wider in the Speed Twin, measuring 160mm compared to the Bonneville's 130mm. The wheelbase is shorter in the Speed Twin, measuring 1430mm compared to the Bonneville's 1490mm. The seat height is higher in the Speed Twin, measuring 807mm compared to the Bonneville's 740mm. However, the Speed Twin has a slightly smaller fuel tank capacity of 14.5 liters compared to the Bonneville's 16 liters.

Triumph Speed Twin 1200 2019

Moving on to the strengths of each bike, the Bonneville is praised for its comfort, flawless engine tuning, and clean throttle response. It provides a comfortable riding experience, making it suitable for long rides. On the other hand, the Speed Twin is highly regarded for its beautiful design, even with the hidden details, and its low seat height, which makes it accessible and easy to handle. The 1200cc engine with 97hp offers a balance between power and ease of riding, providing an emotionally satisfying experience.

However, both bikes have their weaknesses as well. The Bonneville has restricted lean angle clearance, limiting its performance during aggressive cornering. It also has some issues with its suspension elements. On the other hand, the Speed Twin has a sharp knee angle for tall riders, which can be uncomfortable during long rides. It also has a slightly rough response in Sport mode and a squeaky rear brake, as reported during testing.

In conclusion, the Triumph Bonneville 2011 and the Triumph Speed Twin 1200 2019 are both impressive naked bikes from Triumph, but they have notable differences in terms of engine power, torque, cooling system, suspension, brakes, dimensions, and weights. Each bike has its own strengths and weaknesses, and the choice between them would depend on the rider's preferences and priorities.