The wide solid center rib keeps the tire close to the road surface at all times, which improves the steering responsiveness and driving stability greatly. This makes the steering responsiveness to the driver's commands faster and more precise, while it stabilizes the tire's structure against the driving pressure affecting it during the drive. The outer tread design optimizes the model's road contact, which upgrades the cornering ability and power. The better road contact improves the number of biting edges that grip the road surface and ensure a safer drive and better controllability in summer weather.