Continental Cross King Tire - 29 x 2.30 Tubeless Folding BLK BLKChili ProTection E25Continental Cross King Tire 29 x 2. 30 Tubeless Folding Black BlackChili ProTection E25. The Cross King is a versatile competition and trail tire sure footed in turns. This comfortable smooth rolling tire adapts to any terrain with its special tread while maintaining good grip. The Cross King tire is available with various technologies ready for various conditions. Carcass construction is robust and impervious against damage and penetration from