Patent ID: 8443856
Filing Date: 2013-05-21
Classification: B60C

Abstract:
1. A pneumatic tire for a motorcycle having a pair of bead portions; a pair of sidewall portions extending from the bead portions; and a tread portion extending in a toroidal shape over the sidewall portions, characterized in that: the tread portion is constituted of plural types of rubbers adjacent to each other in the tire widthwise direction and sectioned into at least a center region at the center portion of the tire including the tire equatorial plane and two side regions at respective sides of the tire; only one side region being sectioned into an intermediate portion adjacent to the center region and an edge portion disposed on the outer side thereof; 300% modulus of rubber of the intermediate portion of the one side region differs from 300% modulus of rubber constituting the other side region; the tread portion is asymmetric with respect to the tire equatorial plane in 300% modulus distribution thereof; and 300% modulus of rubber constituting the center region is higher than 300% modulus of each of rubbers constituting the side regions.