Yokohama TY517 Closed Shoulder Drive Semi Tires On-Highway Drive-Axle Operations The Yokohama TY517 Drive tire is a highly efficient drive-axle, on-highway tire that delivers exceptional fuel economy, great traction and superior retreadability. The TY517 provides decreased rolling resistance, long casing life and long, even wear. This is a highly capable drive axle tire. Features and Benefits: 28/32 rib-block tread depth with full-depth grooves delivers long wear and traction-grabbing power for the long haul with no compromises. Mud and snow rated for drive power in the toughest of road conditions. STEM-2 technology for extended casing life, retreadability and durability. Rock-ejecting center groove platform enhances casing life and retreadability. Three large circumferential grooves provide extra-wide, self-cleaning, V-shaped, water-dispersing grooves for improved lateral stability and long, even wear.