The Givi pads are shaped for the Givi cases and are screwed on. I doubt you would have much success mounting one to a Trax box. The Givi pads are not soft, cushy, pliable stuff. A quick peek at SW Motech shows they don't make one... I think you might have to use you imagination and come up with a unique solution. Perhaps a sissy bar pad from a cruiser could be utilized... Maybe search around ADV Rider, someone there may have come up with a workable solution.