Upgrading an icon is never easy. The BT46 replaces the BT45 as Bridgestone's premier bias ply vintage sport and touring tire. The BT46 improves wet grip without sacrificing wear life or handling characteristics. � Adapted silica single compound in the rear to maximize performance, grip and wear Features Bridgestone RC Polymer to contribute to the improvement of wet performance and longer wear life NanoPro-Tech controls the nanostructure of tire materials through molecular design Increased wet performance compared to the BT45 No sacrifice in wear life or dry handling performance Bias ply tire designed for vintage sport and touring motorcycles This vintage touring tire is tubeless Tire size 4.00-18 is tube type This vintage touring tire uses bias ply construction Tire sizes 110/80-18, 110/90-18, 120/80-17, 120/80-18, 130/70-17, 130/70-18, 130/80-17, 130/90-16, 140/70-17, 140/70-18, 150/70-17, 150/70-18�and 4.00-18�are H rated for speeds up to 130 mph Tire sizes 120/90-17, 120/90-18, 130