Which episode of did Ryoma fight for a Griptape?

You're likely thinking of the anime series "Initial D", where Takumi Fujiwara, the protagonist, is often referred to as "Ryoma" by his friends.

However, there isn't a specific episode where Takumi fights for a griptape. Griptape is a standard component of a racing car, and while it's mentioned and shown in the anime, it isn't the focus of any particular conflict or challenge.

Perhaps you're thinking of a different scene or detail from the series? If you can remember any other details, I might be able to help you find what you're looking for.