Yamaha YZ450F

Yamaha · 24 model years · 2004-2027 All Yamaha models →

The Yamaha YZ450F has been Yamaha's flagship 450 motocrosser since 2003, carrying on from the YZ426F and YZ400F that pioneered modern four-stroke motocross. In 2010 Yamaha introduced its distinctive rearward-slanted cylinder with the intake at the front and the exhaust out the back, centralising mass and improving handling.

Later generations added electric start, a bilateral beam aluminium frame and Yamaha's Power Tuner smartphone app for adjusting engine maps. It is a competition machine with no road equipment. The WR450F is its enduro sibling, and its main rivals are the Honda CRF450R, Kawasaki KX450 and KTM 450 SX-F.

Year	Engine	Power	Weight	Seat	Fields
2027	450 cc	56 hp	99 kg	965 mm	45
2026	450 cc	56 hp	99 kg	965 mm	47
2025	450 cc	56 hp	99 kg	965 mm	49
2024	449 cc	56 hp	99 kg	965 mm	49
2023	449 cc	56 hp	99 kg	965 mm	49
2022	449 cc	56 hp	99 kg	965 mm	49
2021	449 cc	56 hp	99 kg	965 mm	49
2020	449 cc	56 hp	99 kg	965 mm	49
2019	449.7 cc	56 hp	99 kg	975 mm	49
2018	449 cc	56 hp	99 kg	975 mm	46
2017	449.7 cc	56 hp	99 kg	975 mm	46
2016	449 cc	56 hp	99 kg	975 mm	46
2015	449 cc	56 hp	99 kg	975 mm	46
2014	449 cc	56 hp	99 kg	1001 mm	45
2013	449 cc	56 hp	99 kg	1001 mm	46
2012	449 cc	56 hp	99 kg	1001 mm	46
2011	449 cc	56 hp	99 kg	998 mm	46
2010	449 cc	56 hp	99 kg	998 mm	45
2009	449 cc	56 hp	99 kg	988 mm	45
2008	449 cc	56 hp	99 kg	988 mm	45
2007	449 cc	44.9 hp	100 kg	988 mm	43
2006	449 cc	44.9 hp	100 kg	998 mm	38
2005	449 cc	44.9 hp	98 kg	996 mm	44
2004	449 cc	44.9 hp	97 kg	995 mm	45