Double Block support
The Double Block support on the outer shoulder of the tire guarantees a precise driving feel. It is activated for additional support under harder driving, as the tread blocks turn against each other and stiffen the tire structure. In normal driving, however, the Double Block support is flexible, which in turn lowers the rolling resistance and improves fuel economy.
The shoulder areas of the tire are also supported using 20-degree angles of inclination on the groove walls; this provides excellent driving stability during cornering, lane changes, and evasions, for example.