Search new + high quality used 285 45 R21 Pirelli tires online, starting at: $44.59. 285 45R21 Pirelli models in stock: 15. All season: 55. Winter: 10. Summer: 19. Run flat: 16. Selling all used tires at discount costs. All used tires go through 2 layers of inspection on specialized equipment. One year warranty + free shipping on all inventory ;) Happy shopping!