Tread for a pneumatic tire

Details Tread for a pneumatic tire Tread for a pneumatic tire

B - Operations, Transporting

60

C

152/124

B60C 11/04 (2006.01) B60C 11/11 (2006.01) B60C 11/12 (2006.01) B60C 11/13 (2006.01)

Patent

CA 2023538

A tread for a pneumatic tire has a central portion and two lateral portions each of which have grooves therein that define at least one circumferentially extending row of high stiffness blocks. The central portion includes grooves that define at least one circumferentially extending row of low stiffness blocks. The radio height of the low stiffness blocks is between 8 % and 18 % superior to the radio height of the high stiffness blocks. The low stiffness blocks may be fabricated of an elastomeric material having a Shore A hardness between 50 to 60 in the vulcanized state, while the Shore A hardness of the high stiffness blocks may be between 65 to 75 in the vulcanized state.

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