Yamaha YZ450F 2017 vs. Suzuki RM-Z450 2017

The Yamaha YZ450F 2017 and the Suzuki RM-Z450 2017 are both motocross bikes that offer impressive performance on the track. While they have similar engine specifications, there are some notable differences between the two models.

In terms of engine and drive train, both bikes have a 449cc displacement and feature a single cylinder, four-stroke engine. The Yamaha YZ450F has a slightly larger bore of 97mm compared to the Suzuki RM-Z450's 96mm. However, the Suzuki RM-Z450 has a longer stroke of 62.1mm compared to the Yamaha YZ450F's 60.8mm. This difference in bore and stroke can affect the power delivery and torque characteristics of the bikes.

Both bikes have a high compression ratio, with the Yamaha YZ450F at 12.5 and the Suzuki RM-Z450 at 12.2. This indicates that both bikes are designed to provide a high level of performance and power.

Yamaha YZ450F 2017

In terms of suspension, both bikes feature upside-down telescopic forks at the front. This type of suspension is commonly used in motocross bikes as it provides excellent handling and stability. The chassis of both bikes is made of aluminum, which helps to keep the weight down and improve overall performance. However, the Yamaha YZ450F has a twin tube frame, while the Suzuki RM-Z450 has a twin-spar frame. The choice of frame design can affect the handling and balance of the bike.

When it comes to dimensions and weights, there are some minor differences between the two bikes. The Yamaha YZ450F has a slightly shorter wheelbase of 1480mm compared to the Suzuki RM-Z450's 1495mm. The seat height of the Yamaha YZ450F is slightly higher at 965mm, while the Suzuki RM-Z450 has a seat height of 955mm. Additionally, the Yamaha YZ450F has a kerb weight of 112kg, while the Suzuki RM-Z450 weighs slightly more at 113kg.

In terms of strengths, the Yamaha YZ450F has some notable advantages. It comes with important parts as standard, which means riders don't have to spend extra money on aftermarket upgrades. The bike also features a tuning app, which allows riders to adjust settings and customize the bike's performance. The Yamaha YZ450F is known for its great response and features Nissin brakes, which provide excellent stopping power.

Suzuki RM-Z450 2017

On the other hand, the Suzuki RM-Z450 has strengths in handling and balance. The bike is praised for its precise and responsive handling, allowing riders to navigate tight corners and jumps with ease. The chassis of the Suzuki RM-Z450 is also highly regarded for its stability and overall performance.

In terms of weaknesses, the Yamaha YZ450F does not have any specific weaknesses mentioned. However, the Suzuki RM-Z450 has a weakness in its setting options for the ECU. This suggests that the Suzuki may have limited options for fine-tuning the electronic control unit, which could affect the bike's performance in certain conditions.

In conclusion, both the Yamaha YZ450F 2017 and the Suzuki RM-Z450 2017 are highly capable motocross bikes with their own strengths and weaknesses. The Yamaha YZ450F offers standard features and a tuning app, while the Suzuki RM-Z450 excels in handling and balance. Riders should consider their specific preferences and riding style when choosing between these two models.