Abstract: A tread (12) for a heavy truck tire is provided that has a bottom surface (14), a shoulder rib (16), and a sacrificial rib (20) located outboard from the shoulder rib (16) in a width direction. A decoupling void (30) is located between the shoulder rib (16) and the sacrificial rib (20). A decoupling void sipe (32) is in the shoulder rib (16) and opens at the shoulder rib upper surface (18) and at the decoupling void (30). The decoupling void sipe (32) extends in the thickness direction and is closer to the bottom surface (14) than the decoupling void (30) in the thickness direction.

Abstract: Pneumatic tire, and method for forming said tire; the tire comprises a tire carcass having a body layer (16) extending between a pair of beads (18), a belt (20) arranged along the tire carcass between the pair of beads, the belt having three belt layers (221-223), wherein the reinforcement elements of the first layer (221) extend in a direction biased from the equatorial plane of the tire by an angle greater or less than zero, the reinforcements of the second layer (222) extend in a direction biased from the equatorial plane of the tire by an angle having an absolute value of 5 to 15 degrees, and the reinforcements of the third layer (223) extend in a direction biased from the equatorial plane of the tire by an angle greater or less than zero.