Patent ID: 8662124

Claim:
A strip-shaped precured tread for a retreaded tire to be attached to a crown portion of a base tire from which a tread is removed, wherein different types of tread rubbers are disposed in a central region including a centerline in a widthwise direction of the tread and side regions on both sides of the central region; and a base rubber layer disposed on an attaching surface side of the tread, extending to both sides across the centerline in the widthwise direction, having a width within a range between 80% and 95% of a width of the attaching surface and consisting of rubber having lower heat generating property than those of the tread rubbers disposed in the central region and the side regions, wherein the tread rubbers disposed in the side regions have JIS A hardness within a range between 25 degrees and 40 degrees, exclusive of 40 degrees and the tread rubber disposed in the central region has JIS A hardness of not less than 50 degrees, wherein an angle formed between a side of the central region abutting one of the corresponding side regions and a side region of the central region abutting the base rubber layer in a cross sectional thereof is smaller than 90°.