Yamaha YZ450F 2017 vs. Yamaha WR450F 2017

The Yamaha YZ450F 2017 and Yamaha WR450F 2017 are both motocross models from Yamaha, but they have some key differences in their specifications and strengths.

In terms of their motor and drive unit, both bikes have the same bore and stroke measurements of 97 mm and 60.8 mm respectively. They also have the same compression ratio of 12.5 and fuel injection system. However, the YZ450F has a kick start system, while the WR450F has both an electric start and kick start option. Both bikes have a single cylinder and operate on a 4-stroke engine with a displacement of 449 cc.

When it comes to suspension, both bikes have a telescopic fork front suspension with a travel distance of 310 mm. The rear suspension on both bikes is a swingarm with deflection shock and a travel distance of 315 mm for the YZ450F and 318 mm for the WR450F.

Yamaha YZ450F 2017

In terms of the chassis, both bikes have an aluminum frame with a double tube design. They also have the same front brake diameter of 270 mm.

In terms of dimensions and weights, the YZ450F has a front tire width of 80 mm and a diameter of 21 inches, while the WR450F has a front tire width of 90 mm and the same diameter of 21 inches. The YZ450F has a rear tire width of 110 mm and a diameter of 19 inches, while the WR450F has a rear tire width of 130 mm and a diameter of 18 inches. The YZ450F has a longer wheelbase of 1480 mm compared to the WR450F's 1465 mm. Both bikes have the same seat height of 965 mm. The YZ450F weighs 112 kg, while the WR450F weighs slightly more at 123 kg.

Yamaha WR450F 2017

In terms of strengths, the YZ450F has the advantage of having important parts as standard, allowing for easy tuning and excellent response. It also features a Nissin brake system. On the other hand, the WR450F is praised for its powerful and controllable engine, easy handling, high-quality chassis components, and also features a Nissin brake system.

Both bikes do not have any listed weaknesses, indicating that they are both well-rounded models in their own right.

Overall, the Yamaha YZ450F 2017 and Yamaha WR450F 2017 are both high-performance motocross bikes with their own unique strengths and specifications. The YZ450F is focused on providing excellent response and tuning capabilities, while the WR450F emphasizes a powerful yet controllable engine and high-quality chassis components.