Since both the trax as well as the oem box are back ordered (i had oem on order for more then a month and they kept pushing the estimated date..), i gave up and ordered the 46l givi top box. It's less than half the cost, made of plastic but seems durable as hell and more roomy. Yes, it's not aluminum and doesn't look exactly like my side Adv cases, but I kind of like the way it ended up looking and the functionality of it. besides, I only mount the side cases for long adv rides. daily rides the top givi box is what I use. happy with the choice.