“Remorse” per se is actually a worldly construct. It means to bite yourself back. Repentance is different... it is to use the ongoing mercy of the Lord to steer your life in the direction He desires.
Repent is changing your direction. Remorse (Is less important)/contrite (Of sinful deeds), however creates harmony towards others so that they may genuinely forgive as commanded. Giving the bike back would be a good start.