A tire tread having a length extending in a longitudinal direction, a width extending in a lateral direction, and a depth extending in a vertical direction, the tire tread comprising: a pair of adjacent ground-engaging elements (12; 14), each element including a ground-engaging contact surface; a groove separating the pair of ground-engaging elements, the groove having a groove bottom and a pair of opposing sidewalls (22a, 22b) spaced apart by a groove width, the groove having a length and a groove depth extending perpendicular to the groove length from the ground-engaging contact surface to the groove bottom; a plurality of sipes arranged along the groove length, each sipe having a particular size, and located in communication with a portion of the groove extending between the pair of ground-engaging elements, a plurality of ejectors spaced along the groove length, each ejector having a top side, a bottom side and a heignt extending from the top side to an ejector bottom side, the ejector comprising a projection that extends into the groove from one of the groove sidewalls (22a, 22b), characterized in that each ejector includes two ridges protruding from a side of the ejector and extending into the groove and in a direction of the groove depth, the two ridges being spaced apart in the direction of the groove length, and in that the sipes spaced along one of the pair of opposing sidewalls are staggered relative to the sipes spaced along the other of a pair of opposing sidewalls in a direction of the groove length, such that each sipe spaced along the one of the pair of opposing sidewalls is not located opposite one of the sipes spaced along the other of the pair of opposing sidewalls; wherein said each of the plurality of sipes extends downwardly from the ground-engaging contact surface of a ground-engaging element (12; 14) at least partially through the depth of the ground engaging element and extends substantially across the width of the ground-engaging element (12; 14). a pair of adjacent ground-engaging elements (12; 14), each element including a ground-engaging contact surface; a groove separating the pair of ground-engaging elements, the groove having a groove bottom and a pair of opposing sidewalls (22a, 22b) spaced apart by a groove width, the groove having a length and a groove depth extending perpendicular to the groove length from the ground-engaging contact surface to the groove bottom; a plurality of sipes arranged along the groove length, each sipe having a particular size, and located in communication with a portion of the groove extending between the pair of ground-engaging elements, a plurality of ejectors spaced along the groove length, each ejector having a top side, a bottom side and a heignt extending from the top side to an ejector bottom side, the ejector comprising a projection that extends into the groove from one of the groove sidewalls (22a, 22b), characterized in that each ejector includes two ridges protruding from a side of the ejector and extending into the groove and in a direction of the groove depth, the two ridges being spaced apart in the direction of the groove length, and in that the sipes spaced along one of the pair of opposing sidewalls are staggered relative to the sipes spaced along the other of a pair of opposing sidewalls in a direction of the groove length, such that each sipe spaced along the one of the pair of opposing sidewalls is not located opposite one of the sipes spaced along the other of the pair of opposing sidewalls; wherein said each of the plurality of sipes extends downwardly from the ground-engaging contact surface of a ground-engaging element (12; 14) at least partially through the depth of the ground engaging element and extends substantially across the width of the ground-engaging element (12; 14).