Comparison Thule WingBar Edge 9585 vs Thule WingBar Edge 9584

The length of the crossbars (see "Type") included in the scope of supply. If the slats are of different lengths, both sizes are specified in this paragraph; if one number is indicated here, this means that the size of both crossbars is the same.

Anyway, the length of the crossbars must be no less than the distance between the attachment points of each of them (for example, between the left and right railing) — otherwise the size of the rail is simply not enough to block the space from one point to another. But the margin for this indicator is quite acceptable: most models have the ability to adjust the exact distance between the mounts (at least within a few centimeters). However, for a full guarantee, the range of such adjustment and compatibility with a specific car is still desirable to clarify separately.