This Old school Ripper deck from Powell-Peralta is a 10" x 31.75" classic with a K15 concave, making it ideal for Ripping in any terrain.
K15 concave: The K15 concave offers a double kick nose with a deeper, smoother concave and a longer wheelbase. With a concave kick on the nose and tail, and a scoop tail, the K15 provides a more secure foot placement without making you feel trapped. This is a big boy version of the Powell-Peralta K12 concave that allows for all terrain ripping with the stability of a longer wheelbase. The K15 concave offers less wheel bite because the steeper concave goes out to the edge of the board. The K15 concave is non symmetrical nose to tail, has a 21 degree tail angle, a 23 degree nose angle, a 10-inch tail and nose radius, and a maximum wheelbase of 15.5".