If you don't mind spending for high quality and simplicity, try this all aluminum rack. Best I've ever had. Load you bike securely in about 15 seconds literally! Rock solid on the CRV or the MH, and no lock required because it has an ingenious wrench-free fastening system which makes it virtually theft proof. I've had several bike racks and this is by far the best and the last ever needed. We've traveled with two bikes for over 10k miles with this system. Check out this link.
1upusa bike rack