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Looking for anything valuable to sell to replenish his depleting allowance, Fujisawa Takumi finds a TZM50R motorcycle in his garage. Strangely enough, the bike has a spirit, a female fairy named Timu. She is passionate and knowledgeable about motorcycles but is the jealous type, especially when it comes to other bikes. Takumi has always been uninterested in anything, but something inside him changes as he starts to learn about motorcycles from Timu and learns what it means to have passion in his life.
Yoshio is a girl, and she likes to ride a motorcycle! She wants to be the best and compete in the Grand Battle tournament. But there are many obstacles on her road to victory.
Takeshi Hongo is an expert motorcycle racer and a young genius with an IQ of 400. He is abducted by the secretive company Shocker and turned into a cyborg as part of a fiendish plot to take over the world. Just before his brain is irrevocably transformed, Hongo manages to escape his hidden prison with the assistance of his respected teacher Dr. Midorikawa, a scientific genius who has been forced to work for Shocker. Hongo, with his indomitable spirit and sense of justice, names himself the Masked Rider and uses his motorcycle, Cyclone, and the superhuman powers imbued in him by Shocker to combat the organization's evil ambitions!