Pneumatic tire having tread including pairs of sipes

A pneumatic tire comprising a tread having blocks defined by a plurality of intersecting grooves, wherein

• each of said blocks have pairs of sipes which are formed from a first sipe and a second sipe,
• said first sipes extend from one of two tire axial direction end portions of the block and are inclined with respect to a circumferential direction of the tire,
• said second sipes extend from the other tire axial direction end portion of the block and are inclined with respect to the circumferential direction of the tire,
• said first sipes and said second sipes are alternately disposed along the circumferential direction of the tire,
• an end portion of said first sipes in a vicinity of a center of the block, and an end portion of said second sipes in the vicinity of the center of the block, intersect through an imaginary common line extending along the circumferential direction of the tire,
• said first sipes and said second sipes are inclined in opposite directions,
• said first sipes and said second sipe s do not intersect each other,
• the first sipes on each block are parallel with one another, and
• the second sipes on each block are parallel with one another.