YAMAHAYZ450F 2003 - 2004

　　The 2003 YZ450F gets 48mm upside down forks with revised setting for a smooth, progressive feel and exceptional ground contact in the most demanding of scenarios. An all-titanium valve head allowing continued operation near the red line, a counterbalancer, revisions for other internals and more are making the engine of the 2003 YZ450F a high-performing lump for thrill-seekers.

　　Add in a heavy-duty clutch, a strong and stiff steel frame, sturdy wheels and a better auto-decompression system to up the ante even more and prove that this beast is really able to bring in trophy after trophy.