Michelin PRIMACY MXM4 Performance Radial Tire - 245/45R18 96V A unique self-supporting construction that locks together for greater rigidity when traction is needed most, allowing the use of more sipes for adverse road conditions (wet and snow) without giving up the handling and wear performance. Sunflower oil additive in tread compound helps provide increased traction at low temperatures for enhanced braking and handling in wet conditions and better overall performance in snow.