Patent ID: 8887778
Filing Date: 2014-11-18
Classification: B60C

Abstract:
1. An off-road motorcycle tire comprising a tread portion having a plurality of blocks defined by tread grooves, wherein: at least one of said blocks has a shallow groove having a groove depth of 10 to 50% of a height of said blocks to provide a shallowly-grooved block in which the block is divided into at least two block segments by said shallow groove, said shallow groove having both ends opened on outer wall surfaces of said shallowly-grooved block, groove wall surfaces extending radially inwardly from a tread surface of the block which comes into contact with a road, and a bottom connecting said groove wall surfaces, and intersection portions between said bottom and said outer wall surfaces are chamfered to form chamfered portions having a convex arc-like curved surface, wherein said shallowly-grooved block is provided with a notched portion which is formed in at least a part of an intersection portion between the thread surface and the outer wall surfaces and which extends along a profile line of a tread surface.