The newly designed all season tire for Long and Regional Haul Tractor-Trailer vehicles aims to achieve New Segment Multi Purpose application through improved mileage and grip performance. Through its design that satisfies both wear / fuel efficiency performances demanded by consumers who work under various road conditions, the tire offers excellent economic feasibility and stability. The application of 3D-kerf strengthened wear resistance and traction, and the tread wear equalizer stepper prevents irregular wear of the main rib and improves mileage.