Experienced motocross rider or occasional rider riding motocross for fun, StarCross 5 is the high-performance motocross tIre designed to allow you to face any terrain Tested and approved by riders from pros to occasional motocross rider Designed to give the ultimate performance An offer adapted to each type of terrain, bike and use Larger size range for a wider scope of usage including new sizes designed for cross-country Tube type (TT) Blackwall 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 ALTHOUGH THE DATA IS BELIEVED TO BE ACCURATE, NO WARRANTY OR GUARANTEE IS MADE REGARDING THE QUALITY OR ACCURACY OF THE DATA SIZE: 80/100-21 51M PART# 0312-0293