|This article is about a/an vehicle in Kamen Rider Drive.|
The Sky Cyclone (スカイサイクロン Sukai Saikuron, Format Number MR-004) is Kamen Rider 4's personal fighter plane and flagship of the Shocker Air Force. It debuts in the net series D-Video Special: Kamen Rider 4.
The Sky Cyclone is able to combine with two other Shocker Fighters, which attach to its wings.
- The Sky Cyclone is physically modeled on the Vietnam War-era Douglas A-1 Skyraider attack aircraft.
- This is the first Rider Machine to be a plane.
- The concept of using an airplane as a Rider Machine could be chased back to 1971 "Kamen Rider License" toy, which one of the cards featured a Kamen Rider piloting a World War II fighter.
- Like Rider 3's TriCyclone, while Rider 4 was neither a member of Tachibana Racing Club, nor affiliated with the Double Riders, the Sky Cyclone is marked with the logo on the wings.