A non-pneumatic tire comprising: a rigid central annular portion; an annular shear band circumferentially arranged about the rigid central annular portion; one or more deformable spokes arranged between the annular shear band and the rigid central annular portion; a tread defining an outer, ground-engaging side of the non-pneumatic tire extending annularly around the non-pneumatic tire, wherein the tread has a length, a thickness (T 18) extending radially inward from the outer, ground-engaging side to a bottom side of the tread, and a width (W 18) extending laterally between a pair of opposing lateral sides of the tread, the width (W 18) extending transverse to a direction of the tread thickness (T 18) and to a direction of the tread length; a plurality of tread elements arranged along the outer, ground-engaging side of the tread, where the plurality of tread elements include at least one pair of tread elements spaced apart by a longitudinal groove, the longitudinal groove extending primarily in the direction of the tread length; characterized in that one or more displaced, i.e. discontinuous, reinforcement layers (28 d) extending circumferentially around the non-pneumatic tire and in a direction of the tread width (W 18), the one or more displaced reinforcement layers (28 d) being arranged within the annular shear band where the longitudinal groove extends through at least one of the one or more displaced reinforcement layers (28 d) and thereby separates opposing portions (28 d1, 28 d2) of the at least one of the one or more displaced reinforcement layers (28 d), wherein the one or more displaced reinforcement layer includes a discontinuity, i.e. a spacing or void, into which a longitudinal groove extends; and one or more non-displaced, i.e. continuous, reinforcement layers (28 d) extending circumferentially around the non-pneumatic tire and in the direction of the tread width (W 18), the one or more non-displaced reinforcement layers (28 nd) being arranged within the annular shear band such that the longitudinal groove does not extend through any of the one or more non-displaced reinforcement layers, wherein the one or more displaced reinforcement layers (28 d) are arranged between the tread and the one or more non-displaced reinforcement layers (28 nd). a rigid central annular portion; an annular shear band circumferentially arranged about the rigid central annular portion; one or more deformable spokes arranged between the annular shear band and the rigid central annular portion; a tread defining an outer, ground-engaging side of the non-pneumatic tire extending annularly around the non-pneumatic tire, wherein the tread has a length, a thickness (T 18) extending radially inward from the outer, ground-engaging side to a bottom side of the tread, and a width (W 18) extending laterally between a pair of opposing lateral sides of the tread, the width (W 18) extending transverse to a direction of the tread thickness (T 18) and to a direction of the tread length; a plurality of tread elements arranged along the outer, ground-engaging side of the tread, where the plurality of tread elements include at least one pair of tread elements spaced apart by a longitudinal groove, the longitudinal groove extending primarily in the direction of the tread length; characterized in that one or more displaced, i.e. discontinuous, reinforcement layers (28 d) extending circumferentially around the non-pneumatic tire and in a direction of the tread width (W 18), the one or more displaced reinforcement layers (28 d) being arranged within the annular shear band where the longitudinal groove extends through at least one of the one or more displaced reinforcement layers (28 d) and thereby separates opposing portions (28 d1, 28 d2) of the at least one of the one or more displaced reinforcement layers (28 d), wherein the one or more displaced reinforcement layer includes a discontinuity, i.e. a spacing or void, into which a longitudinal groove extends; and one or more non-displaced, i.e. continuous, reinforcement layers (28 d) extending circumferentially around the non-pneumatic tire and in the direction of the tread width (W 18), the one or more non-displaced reinforcement layers (28 nd) being arranged within the annular shear band such that the longitudinal groove does not extend through any of the one or more non-displaced reinforcement layers, wherein the one or more displaced reinforcement layers (28 d) are arranged between the tread and the one or more non-displaced reinforcement layers (28 nd).