Gravity Drop Carve 41 Olas Azules Complete Longboard - 9.5x41 Gravity 41" Drop Carve Olas Azules Complete Longboard 9.5x41. This board shares the same great concave and camber from the Kalai, and the same high quality components. This board is the ultimate freeride board, with a traditional skateboard construction. Randal R-II 180mm trucks, Gravity ABEC5 Bearings and Gravity wheels.