Stiffness enhanced tread

A tire comprising a tread base comprising a first material and a tread cap comprising a second material is disclosed. The tread cap is disposed radially outward of at least a part of the tread base and configured for operationally coming into contact with a ground surface. At least one annular ring (40, 42) comprising a third material is provided, the ring (40, 42) being disposed at least partially within the tread cap and extending radially away from the tread base. The third material provides an electrical conductivity path to the ground surface. Either the ring (40, 42) has a stiffness in the radial direction greater than stiffnesses in the circumferential and lateral directions and the third material has a lower hysteresis than the second material or than the second and the first material, or the second and the third material has a different stiffness property than the first material.