Bikeman was a Machine Choujin in the form of a motorbike and served as Kinnikuman Zebra's Center Guard. At first, he was called Riderman (ライダーマン Riderman), but a character with the same name appeared in Kamen Rider V3, so it was changed to Bikeman. He has a dangerous personality and shakes with excitement during a rough fight. He is usually shaped like a normal human, but he can transform into the shape of an autobike. He could also manipulate electricity at will. Zebra relies heavily on his fighting abilities. He charges up his engine by plugging into his teammate Motorman. Like his teammates, he refers to Zebra as Zebra-sama (ゼブラさま Zebra-sama)