YAMAHAWR450F 2005 - 2006

　　In 2006, Yamaha released the WR450F, an off-road motorcycle part of the WR series that comprised motorcycles with different engine displacements. The bike was first offered in 1998 with the WR400F model that shared many components and designs with the Yamaha YZ400F.

　　The bike was manufactured over several generations, while the 2006 WR450F was the last model released in the third generation. The bikes manufactured from 2003 to 2006 packed a larger displacement engine from 426 to 449cc and came with a smaller capacity fuel tank and an electric starter as standard equipment.

　　The Japanese motorcycle maker also released a limited production model designated as the WR450F 2-Trac, which featured a two-wheel drive. The front wheel received 15 percent of the engine power through an oil pipe and a fully enclosed pump driven by a chain.

　　The 2006 Yamaha WR450F packed the same 449cc four-stroke single-cylinder liquid-cooled engine as previous models, delivering an output power of 58 hp at 9,000 rpm and 49 Nm (36 lb-ft) torque at 7,000 rpm.

　　For suspension, the bike was handled by a 46 mm Kayaba inverted telescopic fork on the front with rebound and compression adjustability, offering 300 mm wheel travel. The bike's rear end was handled by a fully-adjustable Kayaba shock absorber with 318 mm wheel travel.

　　In the braking department, the 2006 Yamaha WR450F's wire-spoke wheels were fitted with a dual-piston caliper, a 245 mm disc on the rear, and a four-piston caliper with a 150 mm disc on the front.