| 摘要 |
A rally-cross tire is provided to form a groove at a precision position of the tire without a particular pattern sheet by forming a guide line having a grid pattern on a surface of the tire. The rally-cross tire comprises a tread surface. A circumferential length(L) of a tread surface is divided by a predetermined pitch(P) into N segments. A width(W) of the tread surface is divided by the pitch into M segments. A guide line that satisfies P*M<=W is formed on the tread surface. The guide line has a depth of 0.1 to 0.5mm. The guide line has a width of 0.3 to 1.2mm. A length defined by M folds of the pitch is disposed in the middle in a width direction of the tread surface. A printing mark is formed to connect an intersection of the guide line.
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