SP 50 is an M&S rated tire with tread design ideal for all-weather traction and grip. This features the Multi-Pitch Tread Design Technology™ that minimizes driving noise. Its four circumferential grooves are also made for water evacuation and helps in grip on wet roads. The Silicarbon Matrix™ tread is made of silica and carbon black helps grip and traction possible and better for wet or dry roads. The center rib also has function to help stability on the road and increased steering response.