Iron Man Tiger 7, was a Japanese tokusatsu television series that aired in 1973, produced by P Productions.
Takigawa Go gets the power to transform into Tetsujin Tiger Seven from an artificial heart and a magic pendent. To transform he utters the henshin (transformation) phrase "Tiger Spark". Go rides a Suzuki motorycle with rocket busters. When he transforms into Tiger Seven the motorcycle transforms as well to become "Spike Go". Spike Go can drive itself, coming to its master's aid when Tiger 7 roars.