This is a plastic model that needs assembly. This model depicts the special Inter-coloring edition YZR-M1 that raced in the 2005 U.S. MotoGP. The commemorative special edition bike was produced to celebrate the 50th anniversary of the founding of Yamaha Motor. Tamiya s model faithfully replicates the distinctive markings of U.S. Grand Prix edition, together with the compact and streamlined form of the 2005 YZR-M1.