PROTRUDING KNURLING UNIT AND TIRE INCLUDING THE SAME

A protruding knurling unit is proposed. The protruding knurling unit may include a first knurling portion extending at an incline with respect to a bottom surface, and a plurality of second knurling portions each extending at an incline with respect to the bottom surface. The first knurling portion may include a first knurling portion bottom. Each of the plurality of second knurling portions may include a second knurling portion bottom. A distance between the second knurling portion bottoms of the plurality of second knurling portions may be shorter than a length of the first knurling portion bottom.