Pneumatic tire for heavy vehicle

A pneumatic tire for heavy vehicle comprising:

• first platforms bent at bent sections of a main groove extending zigzag in a circumferential direction of the tire;
• a second platform linearly extending between one of the first platforms and another of the first platforms;
• and
• a third platform extending between said one of the first platforms and the second platform,
• wherein the first, second, and third platforms are arranged at a bottom of the main groove within half a pitch of the main groove;
• a length of the one of the first platforms in the circumferential direction of the tire, a length of the second platform in the circumferential direction of the tire, and a length from one end of said one of the first platforms to one end of said another of the first platforms are different from each other;
• the length of said one of the first platforms in the circumferential direction is larger than the length of the second platform in the circumferential direction;
• and
• a width of each of the first and second platforms in an axial direction orthogonal to the circumferential direction of the tire and a height from the bottom of the main groove of each of the first and second platforms are larger than a width of the third platform in the axial direction orthogonal to the circumferential direction of the tire and a height of the third platform from the bottom of the main groove, respectively.