Birch, Stewart, Kolasch & Birch, LLP
Tire
A tire includes a tread portion being provided with a pair of circumferentially and continuously extending shoulder main grooves and at least one crown main groove between the shoulder main grooves to form a pair of middle portions each of which is between adjacent one crown main groove and one shoulder main groove. Each of the middle portions is provided with a circumferentially and continuously extending longitudinal sipe, a plurality of inner middle sipes extending axially outwardly from the crown main groove and terminating without reaching the longitudinal sipe and a plurality of outer middle sipe extending axially inwardly from the shoulder main groove and terminating without reaching the longitudinal sipe. The number of the outer middle sipes is greater than the number of the inner middle sipes.
SUMITOMO RUBBER INDUSTRIES, LTD.
B B B B B B B B B B B B B B B
B60C B60C B60C B60C B60C B60C B60C B60C B60C B60C B60C B60C B60C B60C B60C
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Hiroshi
Kikuchi