Michelin Pilot Alpin PA4 Tires are on sale plus free shipping! Pilot Alpin PA4 tires provide exceptional control in snow and ice, merging pilot performance handling with Alpin tire winter capabilities. Featuring a heavily grooved tread design and StabiliGrip, a new 3-D sipe pattern, these tires improve snow acceleration and provide better braking and handling in cold conditions. The silica-based rubber compound Helio lets the tires remain flexible in low temperatures, improving braking distance for better winter performance.