What are the differences between Goodyear's first and second generation?

[DelBennett]

Goodyear's EfficientGrip first and second generations mainly differ in tread density, drainage groove pattern direction, and comfort level. The specific differences are as follows: Different tread density: The first generation has a higher tread density than the second generation, but the first generation's lateral grooves are smaller, about 1 millimeter in width, while the second generation's lateral grooves are larger compared to the first generation. Different drainage groove pattern direction: The first generation's central drainage groove pattern is in opposite directions, while the second generation's central drainage groove pattern is in the same direction. Different comfort level: The second generation is an upgraded version of the first generation, offering quieter and more comfortable performance. This is because the second generation is a tire specifically designed for luxury cars, featuring quiet and comfortable performance with excellent wet braking performance. The innovative tread and carcass design, advanced shock-absorbing carcass, and silica compound formula provide drivers with a quiet and comfortable driving experience.