The Black Rhino FR-U IV is a mobile assault vehicle built by Franky for the Thousand Sunny, and the arms of the General Franky.
The Black Rhino FR-U IV is an assault motorbike from the manga/anime series One Piece that was created by Eiichiro Oda. The series first began serialization in Weekly Shōnen Jump magazine on August 4, 1997. It first appeared in One Piece Volume 64 CH. 635 "So Grotesque I Could Fly", and the anime appearance was in One Piece - Episode 556 "Unveiled! The Secret Weapons of the Sunny!".