The Rocky Mounts Pichfork bike carrier is a sleek low profile bike carrier that would make a stylish addition to roof rack.Includes 9mm non-locking skewerFits Thule and Yakima crossbarsFits Thule and Yakima crossbarsMachined Sloted tray cleanly fits bike with and without disc brakesHolds skinny road tires to 2.7" mountain bike tiresLocks sold separately, one lock pack will lock bike to rack and rack to car (part# AR8060)