American Roadstar A/S. All Season performance, Asymmetrical design for more contact and, cornering capability, Urgent steering response and grip, Design to work for all seasons. The 4 wide longitudinal grooves provide good drainage performance, keep excellent handling performance in wet road. The Anti eccentric wear belts on outer shoulder can increase the tread contact area at braking to obtain uniform contract pressure, which can avoid the eccentric wear. The Closed slanted grooves can disturb the spread direction of noise to decrease noise. Closed slanted grooves also can provide stability during cornering. The Wide Grooves and fine sipes design can destroy water film to guarantee the drainage performance effectively , and reduce noise greatly, providing a comfortable driving experience. The Silent pitch and sequence design for optimization of pitch width and sequence effectively reduce the noise resonance, resulting in a quieter ride.