Iron Man Tiger Seven.

Tetsujin Tiger Seven, translated as Iron Man Tiger 7, was a Japanese tokusatsu television series that aired in 1973, produced by P Productions. Unlike P. Productions previous series about cat based heroes Iron Man Tiger 7 is set in modern Japan. 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 phrase "Tiger Spark". Takigawa Go is played by Tatsuya Nanjô who also starred in Toei's Henshin Ninja Arashi. Go rides a Suzuki motorcycle with rocket boosters. 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. Tetsujin Tiger 7 was apparently P. Production's attempt at a Kamen Rider style series. They even hired Shunsuke Kikuchi composer of the 1970s Kamen Rider music to write the music for Tetsujin Tiger 7.