Adapter which allows a WanderWay carrier to go from 2 to 3 bikes in capacityAttaches an additional bike rail in-between the two original mountings on the WanderWay platformAdjustable wheel attachments with pump buckle strapsLockable frame holder arm for securing the frameRubber coated jaws hold frame securely and a lockable AcuTight torque limiting knob prevents over or under tighteningCovered by Thule's 5 year warranty