Don't use the rails on the shell. It'll break over time if you put any kind of load on it. Use the Side Loader or Wide Body attachments and Raingutter style towers.
runner88 you have me confused. first you say not to use the rails on the shell. because they will break. then you say and show a picture of the raingutter style mounts. All i plan to use them for is carring my snowboard. i would not use them for putting my spare tire on there.
