Triumph Street Triple 675 R 2014 vs. Triumph Speed Triple R 2015

In terms of engine and drive train, both the Triumph Street Triple 675 R 2014 and the Triumph Speed Triple R 2015 have inline three-cylinder engines. However, the Speed Triple R has a larger displacement of 1050cc compared to the Street Triple's 675cc. This results in a higher engine power of 135 HP for the Speed Triple R, compared to the Street Triple's 106 HP. The Speed Triple R also has higher torque at 111 Nm, while the Street Triple has 68 Nm of torque.

Both bikes have liquid cooling systems and three cylinders. The Street Triple R has a slight advantage in terms of fuel efficiency with a displacement of 675cc, compared to the Speed Triple R's 1050cc.

In terms of suspension, the Street Triple R 2014 features a Kayaba upside-down telescopic fork at the front, while the Speed Triple R 2015 has an Öhlins telescopic fork. Both forks offer compression and rebound adjustment. The rear suspension on both bikes is also adjustable for compression and rebound, with the Street Triple R featuring a Kayaba suspension and the Speed Triple R featuring an Öhlins suspension.

Triumph Street Triple 675 R 2014

Both bikes have a twin tube frame type and four-piston front brakes. However, the Speed Triple R has the advantage of radial and monoblock technology in its front brakes, compared to the Street Triple R's Nissin brakes.

In terms of dimensions and weights, both bikes have a front tire width of 120mm and a front tire diameter of 17 inches. The Street Triple R has a rear tire width of 180mm and a rear tire diameter of 17 inches, while the Speed Triple R has a wider rear tire width of 190mm. The Speed Triple R also has a slightly longer wheelbase of 1435mm compared to the Street Triple R's 1410mm. The seat height is higher on the Speed Triple R at 825mm, compared to the Street Triple R's 800mm. Both bikes have a similar fuel tank capacity, with the Street Triple R having 17.4 liters and the Speed Triple R having 17.5 liters.

Triumph Speed Triple R 2015

In terms of strengths, the Street Triple R 2014 is praised for its extremely easy handling, rev-happy engine, wonderful three-cylinder sound, brute brakes, and cool streetfighter look. On the other hand, the Speed Triple R 2015 is praised for its powerful and unique three-cylinder engine, brute brakes, excellent Öhlins suspension components, and traditional look.

The Street Triple R 2014 has some weaknesses, including a hard chassis with modest comfort, a slightly weak engine at the bottom end, loud noise over time, and brakes that may not be entirely suitable for beginners. The Speed Triple R 2015 has a somewhat sluggish handling and a high surcharge for the R version.

Overall, the Speed Triple R 2015 offers more power and performance with its larger engine displacement and higher torque. It also features higher-end suspension components and a wider rear tire for improved stability. However, the Street Triple R 2014 offers a more nimble and easy-to-handle riding experience, with a more affordable price point.