|This article is about a rider machine in Kamen Rider W.|
The Diablossa (ディアブロッサ, Diaburossa) is Ryu's personal motorcycle. It also has a holder for the Engineblade. Ryu does not ride it as Accel, likely because of his ability to assume bike form when transformed. Its name comes from the Spanish and Italian words "Diablo" and "Rosso" (meaning "Red Devil").