Race for Glory (1989)

A member of an up and coming motorcycle racing team abandons his teamates to join a rival team. He ends up playing second fiddle to the champion of the new team. Not satisfied, and against the wishes of his new boss, he tries to beat the champion but fails. He leaves racing, eventually to return and reunite with his old friends in an attempt to win the Grand

Unfortunately the movie Race for Glory is not yet available on Disney Plus.