<P> Also in 2001 the subframe was changed from a steel to a blue painted aluminum style . In 2002 the blue painting was stopped and left to a bare aluminum look . Motorcycle.com says that "The gas tank is reasonably thin and allows good forward and backward movement while providing something nicely shaped to hold onto with your knees . In fact, the entire ergonomic package on this YZF is well thought out . The handlebars have a nice bend to them and are well - placed for good rider control and legroom . The footpegs are well - made units with a wide platform and sit in a position that keeps them from dragging in ruts without cramping a rider's legs ." </P> <P> In 2002 Yamaha remapped the digital CD ignition system which delivers a more precise spark and optimal timing for faster, stronger response during hard acceleration, and less kickback during starting . Also an all - new swingarm which is lighter and stronger for reduced weight, greater rigidity and more compliant rear suspension action . While an anodized finish gives the bike a tricked out look . The 426 also includes a larger pivot shift for increased durability . A larger rear brake disc was also added which means greater stopping power . </P> <Table> Third Generation YZ450F <Tr> <Th> Production </Th> <Td> 2003 - 2005 </Td> </Tr> <Tr> <Th> Predecessor </Th> <Td> YZ426F </Td> </Tr> <Tr> <Th> Engine </Th> <Td> Titanium five - valve, 449 cc, 95.0 x 63.4 mm, compression ratio 12.3: 1 </Td> </Tr> <Tr> <Th> Transmission </Th> <Td> 2003 - 2004: 4 - speed 2005: 5 - speed </Td> </Tr> <Tr> <Th> Frame type </Th> <Td> Steel </Td> </Tr> <Tr> <Th> Related </Th> <Td> YZ250F, WR450F </Td> </Tr> </Table> <Tr> <Th> Production </Th> <Td> 2003 - 2005 </Td> </Tr>

How many gears does a 2003 yz450f have