I frequently carried two road bike in a CRV with no mounts. By taking the front wheels off, it was possible to position the bikes fork first up against the folded rear seats of the car. The brake levers hooked over the top edge of the folded seat, the fork tips extended down in the space behind the seat and the bike sat upright with out issue or damage to car or bike. Unfortunately my current Outback (or the Forester) do not have the vertical clearance for such an arrangement. I've used the fork mounts everyone has discussed in this thread, but they are not needed in the CRV situation (and in fact may cost you a bit of space). JM experience.