Roof-Mount Bicycle Carriers come in fork-mount and upright style. The fork-mount style carries one bike securely by front fork and rear wheel. The upright style carries one bike locked by the frame with both wheels secured. Carrying clamps feature rubber inserts to help protect bike surfaces. Both styles attach to sport-utility bars and two carriers can be used on one roof rack. Color: Aluminum Notes: Not for Convertibles. Upright style. Lockable. Mounts to T-slot compatible tacks. Fits all bike styles.