Ribtec 585 The Ribtec 585 is the optimum family sized RIB, with a wide beamed deep %u2018V%u2019 hull, which is still easy to trail and store. The boat has excellent deck space for a multitude of seating options and with its attractively raised bow, offers dry deep-sea performance. The 585 is also favoured for its strong lightweight hull, ideal for carrying larger loads for diving, survey and other working applications.