YAMAHAWR450F 2002 - 2003

　　The Yamaha WR450F was an off-road motorcycle manufactured by Yamaha, first introduced in 1998 with a 400cc engine. The bike shared many components with the YZ400F motocross model.

　　The machine was basically a racing YZ450F with a slightly detuned engine for more controllable power, packing a headlight and a lighting coil, a softer suspension, a kickstand, a larger radiator, lower emissions, and lower noise specifications.

　　The first generation of the WR400F was introduced in 1998, a related motorcycle to the YZ400F motocross model. The WR400F was considered a groundbreaking model in motorcycle history with an impressive record of reliability.

　　In 2003, Yamaha launched the WR450F, a motorcycle in its third generation manufactured from 2003 to 2006 that received a displacement increase, a smaller fuel tank, and an electric starter as standard features.

　　In addition, Yamaha released a limited production version of the WR450F, with a 2-trac designation, which featured a two-wheel drive. The front wheel received a maximum of 15 percent power from the engine through an oil pipe.

　　The 2003 Yamaha WR450F had a single-cradle steel frame that housed a 449cc four-stroke liquid-cooled single-cylinder engine with 58 hp on tap at 9,000 rpm and 49 Nm (36 lb-ft) torque at 7,000 rpm.

　　The bike's suspension was handled by a 46 mm inverted Kayaba adjustable telescopic fork on the front and a fully-adjustable Kayaba shock absorber on the rear, delivering excellent off-road handling capabilities.