... available wing rigger and tube rigger options Racing shells: 4X, 4-, 4X/- (Barque/soutuvene/roeiboot/pot de rems/ barco a remos ... .Carbon wing rigger, foot stretcher board, seats.KEVLAR RACER (A)Shell: Hi Modulus Carbon/Kevlar wet layup, with Nomex honeycomb core ... alloy wing riggers, Carbon foot stretcher board, seats.EXPLORER (B)Shell: Hybrid (Carbon and Kevlar) wet layup, with Lantor ® core mat ...