Thanks to special compound specification and special ingredient recipe utilized in the tread crown, excellent anti-skidding performance under low temperature is obtained. Thanks to the multi-sipes, small block in the pattern, strong grasping performance is obtained. Thanks to special treatment on the pattern block, irregular wearing on the pattern is avoided. All the grooves are set with deep, shallow, deep, shallow channel, thanks to tight combination of rigidness and softness, excellent handing performance is obtained.