The maintained road contact improves the steering and driving stability with the center rib, while the shoulder tread blocks upgrade the cornering and maneuvering ability and power. The Hena extends the tread life and tire usability by preventing irregular wear. The Forceum HENA is a performance-driven all-season tire with exceptional handling and comfort year-round. It features circumferential and angled grooves and provides enhanced wet-weather performance and superior water evacuation for safer driving on rainy days The tread design increases the dry and wet weather traction. Forceum Hena The Forceum Hena is a performance and high performance, depending on the speed rating, all season tire manufactured for passenger vehicles. Forceum Hena 215/45R17XL 91W BSW | Free Shipping Tires Easy The Forceum Hena is a performance and high performance, all season tire made for passenger vehicles. The tire provides great all weather traction The circumferential and special lateral grooves avoid hydroplaning by eliminating water from the footprint. The angled lateral grooves decrease the road noise heard during the drive. Features All Season Tire - The tread design improves the dry and wet weather traction by increasing the tire's road contact summer weather situations. High Performance Passenger Car Tires Set Of 4 (FOUR) Accelera Phi-R 215/45ZR17 215/45R17 91W XL A/S High Performance Tires Fits: 2011 Set Of 4 Performance Tires Handling - The maintained road contact of the straight center rib improves the steering responsiveness and driving stability greatly.