YAMAHAYZ450F 2002 - 2003

　　The 2002 YZ450F is the top-drawer dirt bike in Yamaha's line-up , and it comes with a new 449cc engine, with liquid cooling and a 5-titanium-valve architecture, and redesigned automatic decompression for easier starts. The clutch is also new, and sports bigger plates for a more resilient performance under stress, while the all-new 4-speed transmission was revised for more explosive power deployment, one thing skilled riders really appreciate.

　　A new suspension was installed, alongside stronger brakes and lighter frame and swingarm, all for razor-sharp handling regardless of how difficult the terrain might be.