Home › Belgian road signs M9 Category : Additional panels M9 : M9 - Cyclists allowed both directions. Cyclists may travel in both directions. M9 - Cyclists allowed both directions. Cyclists may travel in both directions. See the road sign gallery Other road signs Type GX (white panels - arrows)Type GX b (white panels - arrows)Type GX c (white panels - arrows)Type GX c (white panels - arrows)Type GXI (right exit)Type IType I bType II