that is until you drop it, trying to put it up on the roof rack... best place is on the bumper with a cover to protect it from the elements mud and gravel... after you have had to use it, your arms are a might bit tired and fatigued and you usually are not in the mood to lift it up to the roof rack and fasten it in place, especially if you happen to be alone at the time... reference Murphy's Law off roading edition for examples...