Yamaha WR450F 2015 vs. Yamaha YZ450F 2016

The Yamaha WR450F model year 2015 and the Yamaha YZ450F model year 2016 are both motocross bikes that offer impressive performance on the track. While they share many similarities in terms of their engine and drive train specifications, there are also some notable differences between the two models.

In terms of engine and drive train, both the WR450F 2015 and YZ450F 2016 have a single-cylinder, 4-stroke engine with a displacement of 449cc. However, there are some differences in the bore and stroke measurements. The WR450F 2015 has a bore of 95mm and a stroke of 63.4mm, while the YZ450F 2016 has a slightly larger bore of 97mm and a shorter stroke of 60.8mm. Additionally, the YZ450F 2016 has a slightly higher compression ratio of 12.5 compared to the 12.3 of the WR450F 2015. Both bikes have a kick starter and feature an aluminum frame with a twin tube design.

In terms of suspension, the WR450F 2015 features a telescopic fork front suspension, while the YZ450F 2016 has an upside-down telescopic fork front suspension. This difference in suspension design may result in slightly different handling characteristics between the two models.

Yamaha WR450F 2015

When it comes to dimensions and weights, the WR450F 2015 has a front tire width of 80mm and a diameter of 21 inches, while the YZ450F 2016 has the same front tire specifications. However, the rear tire width of the WR450F 2015 is 120mm with a diameter of 18 inches, while the YZ450F 2016 has a slightly narrower rear tire width of 110mm and a larger diameter of 19 inches. The wheelbase of the WR450F 2015 is 1475mm, while the YZ450F 2016 has a slightly longer wheelbase of 1480mm. The seat height of both models is similar, with the WR450F 2015 at 960mm and the YZ450F 2016 at 965mm. The YZ450F 2016 is also lighter, with a kerb weight of 112kg compared to the 129kg of the WR450F 2015.

In terms of strengths, the WR450F 2015 has a larger brake disc, which may provide better stopping power. It also has the air filter located behind the cylinder head, which can help protect it from dirt and debris. Additionally, the WR450F 2015 has a more central weight distribution, which can contribute to agile handling on the track.

On the other hand, the YZ450F 2016 has a more powerful engine and offers adjustable mappings, allowing riders to customize the performance to their preferences. It also has a solid chassis and is known for its good handling characteristics. The gearshifting on the YZ450F 2016 is reported to be pleasant and smooth.

Yamaha YZ450F 2016

As for weaknesses, the WR450F 2015 does not have power tuner accessories, which may limit the ability to fine-tune the performance of the bike. It is also reported to be somewhat top-heavy, which may affect its stability in certain situations.

The YZ450F 2016 has been noted to have a slightly aggressive engine in the lower range, which may require more skill and control from the rider.

In conclusion, the Yamaha WR450F 2015 and the Yamaha YZ450F 2016 are both high-performance motocross bikes with their own unique strengths and weaknesses. While the WR450F 2015 offers a larger brake disc and more central weight distribution, the YZ450F 2016 boasts a more powerful engine and adjustable mappings. Ultimately, the choice between the two models will depend on the rider's individual preferences and priorities.