RIB EXTREME 4.99 September 16, 2021February 5, 2023 Karel Overlaet, RIB Advocate “We measured the internal dimensions of the deck of this RIB Extreme 4.99 and as you will see, for 5 meters, they are very large, they comfortably oppose the internal dimensions of a much larger Inflatable.” Others Also Read...Thrilling Man Overboard During RIB Rally Ibiza 2013RIB Technohull SEADNA 999 - the Legend?What Are Differences Between Hypalon and PVCThe Fun of Owning a Rigid Inflatable Boat (RIB): 8 Thoughts