Cyclode

The Cyclode (サイクロード) is Super-1's transformation belt which allows him to transform into Super-1. Originally he could not transform without the assistance of Professor Henry, but he trained himself and learned to transform by himself.

Behind the scenes
Ignominously, Kazuya Oki actor Shunsuke Takasugi made the dubious claim that Super-1's belt had been stolen by the to fleece money from his fans.