Bridgestone X40 Hard Terrain Front Tire - 80/100-21 007204Rear tires feature cooling fin for better heat dispersion Convex Castle for enhanced traction in acceleration and braking Asymmetric rear tread pattern also enhances traction during acceleration, deceleration and cornering Improved grip in all conditions Available in most big bike sizes The use of the tire and other vehicle data and information accessible through this webpage is limited to persons located in the United States of America and Canada.