Michelin Starcross 5 Medium Terrain Rear Motorcycle Tires - 100/90-19 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