ContiWinterContact TS800 Studless Ice & Snow winter tires were developed for the drivers of small cars looking for good traction on dry, wet and snow-covered roads. Tailor-made for the compact car category, ContiWinterContact TS800 tires are only available in 155/60R15 74T and 175/55R15 77T sizes intended for smart fortwo cars.The ContiWinterContact TS800 molds its winter compound into a directional tread design featuring rounded shoulders and compact honeycomb-shaped blocks that increase tread stiffness to enhance dry road handling while double V-shaped longitudinal and lateral grooves pump water to resist wet road hydroplaning. The honeycomb-shaped sipes maximize the gripping edges to generate traction in snow while the compact tread blocks maintain contact with the road to improve braking on icy surfaces.ContiWinterContact TS800 winter tires meet the industry's severe snow service requirements and are branded with the three-peak mountain snowflake (3PMSF) symbol.Install ContiWinterContact TS800 tires in sets of four only.Due to the traction capabilities of the ContiWinterContact TS800, Continental recommends using ContiWinterContact TS800 tires only in sets of four to provide the best handling characteristics and tire performance.Winter tires are not UTQG rated. Related Information: What is the three-peak mountain snowflake symbol (3PMSF)?