Commercial sharing program, as a form of sharing economy providing access-based service to consumers is becoming increasing popular. Customer cooperation largely influences its success and business performance. Taking the value co-creation perspective grounded in service-dominant (S-D) logic, this study explores user in-role participation and extra-role participation and their antecedents in the context of the commercial bike sharing service. Empirical research findings indicate that altruism, reward, and user knowledge enhance user in-role and extra-role participation, whereas perceived ease of use promotes user in-role participation, and user satisfaction and commitment increase user extra-role participation. Implications from the study findings and future research directions are also discussed.