Yamaha WR450F 2015 vs. Yamaha YZ450F 2016

The Yamaha WR450F 2015 and the Yamaha YZ450F 2016 are both motocross bikes manufactured by Yamaha. While they share many similarities in terms of their technical specifications, there are also some notable differences between the two models.

In terms of the engine and drivetrain, both bikes have a single-cylinder, four-stroke engine with a displacement of 449cc. However, there are some differences in the specific engine specifications. The WR450F 2015 has a bore of 95mm and a stroke of 63.4mm, while the YZ450F 2016 has a bore of 97mm and a stroke of 60.8mm. The compression ratio is slightly higher in the YZ450F 2016 at 12.5 compared to 12.3 in the WR450F 2015. Both bikes have a kick-start system for starting the engine.

Yamaha WR450F 2015

In terms of suspension, both bikes feature a telescopic fork at the front. However, the YZ450F 2016 has an upside-down telescopic fork, which is considered to provide better performance and handling compared to a conventional telescopic fork. This is a notable improvement in the YZ450F 2016 model.

Both bikes have an aluminum frame with a double-tube design. This provides a strong and rigid chassis for optimal handling and stability. The dimensions and weights of the two bikes are also similar, with slight differences in tire width and seat height. The YZ450F 2016 has a slightly wider rear tire at 110mm compared to 120mm in the WR450F 2015. The seat height is also slightly higher in the YZ450F 2016 at 965mm compared to 960mm in the WR450F 2015. The wheelbase is slightly longer in the YZ450F 2016 at 1480mm compared to 1475mm in the WR450F 2015.

Now let's discuss the strengths and weaknesses of each model. The WR450F 2015 has a larger brake disc, which provides better stopping power. It also has the air filter located behind the cylinder head, which helps to centralize the weight distribution and improve agility. On the other hand, the WR450F 2015 is slightly heavier in the upper part, which may affect its maneuverability. It also lacks power tuner accessories, which could limit its customization options.

Yamaha YZ450F 2016

The YZ450F 2016, on the other hand, has a powerful engine and adjustable maps, allowing the rider to fine-tune the performance according to their preferences. It also has a solid chassis and offers good overall performance and handling. However, the engine of the YZ450F 2016 can be a bit aggressive in the low range, which may require some getting used to.

In conclusion, both the Yamaha WR450F 2015 and the Yamaha YZ450F 2016 are capable motocross bikes with their own strengths and weaknesses. The WR450F 2015 offers a larger brake disc and centralized weight distribution, while the YZ450F 2016 has a powerful engine and adjustable maps. Ultimately, the choice between the two models will depend on the rider's preferences and priorities.