The popular Hang Two carrier is upgraded with factory rack compatibility and improved board protection. Maximum board protection and lateral transport stability with soft, oversized cradle.Two board capacity out of the box no longer need 504 surf strap to transport 2nd board.Universal mounting hardware adapts easily to Thule square and Xsporter load bar, Yakima, and most factory installed racks. Strong, easy to use straps provide board protection and transport security. May require the use of Xadapt3 80 MM bolts on some factory applications.Please consult your local retailer for further information. This item will require the use of Xadapt3 80 MM bolts on our XSporter 421422 and Rapid Aero Bars.